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My Mineral Collection, Copper Minerals Page

This is my copper minerals collection. This is a big page as there are lots of copper minerals and different habits for many of them - besides, the colors are gorgeous!
Copper Minerals on Other Pages
For native copper, see my elements page.

Arsentsumebite, bayldonite, beaverite, boléite, bournonite, caledonite, creaseyite, cumengite, descloizite, diaboleite, duftite, fornacite, kobellite, lengenbachite, linarite, luddenite, meneghinite, osarizawaite, pseudoboléite, sorbyite, thometzekite, tintinaite, and wherryite are on my lead minerals page because the lead content is higher.

Aurichalcite, glaucocerinite, and zincrosasite are on my zinc minerals page for the same reason.

More (aluminum) than copper puts ceruleite, coeruleolactite, nevadaite and (iron) chalcosiderite on my systematic phosphates page.

More (nickel) than copper puts carrboydite, (manganese) nakauriite, and (iron) pisanite, on my systematic sulfates page.

Likewise, since there's less copper than other metal(s), aikinite, carrollite, chalcostibite, cubanite, freibergite, polybasite, stromeyerite, valleriite, and wittichenite are on my systematic sulfides page.

For turquoise see my gemstones page. I have four of the other five members of the turquoise family: chalcosiderite, coeruleolactite, faustite, and planerite. I don't yet have aheylite.

Specimens on This Page
(links take you to either the first or only specimen)

71 Rows

Agardite-(Ca)

This miniature from the Big Three Mine, Silver Peak, Esmeralda County, Nevada has white agardite-(Ca), a hydrated copper calcium hydroxyarsenate, microcrystals on a limonitic matrix. Agardite-Ca) was the provisional name for what is now named zalesiite - the formula was simpler before the renaming as well.

Thanks to Jan Garland (Fine Rocks) for the specimen!

Agardite-(Ce)

A beautiful (and busy) miniature of light-green agardite-(Ce), a hydrated copper calcium hydroxyarsenate with assorted rare-earth elements (REE), tufts withs lots of other minerals (see closeups) on matrix from the Majuba Hill Mine, Pershing County, Nevada. Agardite-(Ca) (where the calcium predominates over the REEs, now named zalesiite) is the end member - various REEs and lead partially replace the calcium.

Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen!

Ajoite

Microcrystals of ajoite, a rare copper hydroxyaluminosilicate with traces of sodium and potassium (the formulas vary depending on your field guide), from the New Cornelia Mine, Ajo, Pima County, Arizona (its type locality). Ajoite also forms inclusions in the famous quartz crystals from the 14th shaft of the Messina Copper Mine in South Africa, which closed almost a decade ago.

Thanks to Richard Dale at Dale Minerals International for the specimen!

Row 2

Antlerite

Antlerite's a fairly rare copper hydroxysulfate - this specimen comes from Coahuila, Mexico. It forms incomplete series with brochantite and dolerophanite, copper oxysulfate.

Thanks to Don Goodell's auction on eBay for the specimen and closeup image!

Apachite

The Christmas Mine in Gila County, Arizona was the home of this apachite (a hydrated copper silicate) specimen - it's also the type locality. The pale blue apachite was very difficult to photograph!

Thanks to C. Carter Rich's table at the 1999 Carnegie Gem & Mineral Show for the specimen!

Arthurite

A winding string of arthurite (a hydrated copper iron arsenosulfatophosphate) on matrix from the Majuba Hill Mine, Pershing County, Nevada.

Thanks to John Veevaert at Trinity Minerals for the specimen!

Row 3

Arthurite on
Chenevixite

This specimen with light-green tufts of acicular arthurite on darker green chenevixite (a copper iron arsenate) also comes from the Majuba Hill Mine in Pershing County, Nevada. Chenevixite is named for Richard Chenevix, an Irish chemist. The closeup (right, larger picture) shows the classic apple-green color. There's also some azurite and some bluish-green crystals that I can't identify.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Atacamite on
Chrysocolla

Atacamite (a copper hydroxychloride) crystals on chrysocolla from the type locality of the La Farola Mine, Copiapó, Chile.There's also malachite and rosasite on the goethite/limonite matrix. It's a polymorph with botallackite, clinoatacamite, and paratacamite, and forms incomplete series with hibbingite and kempite, its iron and manganese analogs.

Thanks to Rick Green at Uniquely Crystalline for the specimen and the image!

Atacamite

Dark-green atacamite crystals (and one big rosette!) on a halloysite-coated matrix also from the La Farola Mine.

Thanks to Antonis Frangoudis' auction on eBay for the specimen!

Row 4

Atacamite

This is an atacamite nodule from the Mount Gunson Mine in South Australia. The closeup shows the conformal fibrous habit unique to this locale.

Thanks to Tony Smith's auction on eBay for the specimen!

Atacamite

A gorgeous large cabinet specimen of prismatic dark-green atacamite clusters, olive-green radial acicular olivenite clusters, and white halloysite balls on matrix from the type locality of the La Farola Mine, Copiapó, Tiera Amarilla, Atacama, Chile.

Thanks to Saul Krotki's auction on eBay for the specimen and the images!

Azurite and
Malachite

Azurite with malachite, both copper (hydroxycarbonate) ores, malachite more so than azurite (azurite weathers into malachite). This one's probably from Morenci, Arizona.

Row 5

Azurite

A single blade of azurite from Touissit, Morocco.

Thanks to Adam Larson at Adam's Mineralsfor the specimen and the image!

Azurite

A cluster of azurite crsytals also from Touissit - the closeup shows the brilliant blue edge transparency.

Thanks to Dan Balan at The Opalloid Gallery for the specimen and the image!

Azurite

A pretty spray of azurite on matrix from the Ojuela Mine, Mapimi, Durango, Mexico.

Thanks to Dan Wienrich at Dan & Jill Weinrich for the specimen and the image!

Row 6

Azurite

Sometimes azurite occurs in little geodes as in this specimen from the Blueball Mine, near Globe, Gila County, Arizona.

Thanks to Bob Keller at the Arizona Mineral Company for the specimen and the image!
Image copyrighted by the Arizona Mineral Company.

Azurite

A Bisbee, Cochise County, Arizona specimen - this is small radiating balls of azurite on black goethite.

Thanks to Dave Hayward at Lucky Strike Minerals for the specimen and the image!

Azurite

A small thumbnail of azurite and malachite.

Row 7

Azurite

A beautiful open grouping of azurite clusters on a white matrix from the Santa Rita Pit, Grant County, New Mexico.

Thanks to Walter Mroch's (The Gem and Mineral Exploration Company) auction for the specimen and the image!

Azurite

A nice thumbnail of azurite in a vug in limonite from the big copper mine at Morenci.

Thanks to Gary Lozonne at Lozonne's Minerals for the specimen and the image!

Azurite

Tiny balls of azurite on (probably) weathered malachite. I don't know where it's from, it appears similar to the Bou Boker, Moroccan material, but it's probably from Morenci, AZ.

Thanks to Martha Crawford's auction on eBay for the specimen!

Row 8

Azurite on
Selenite

An exquisite (but fragile!) specimen of azurite-coated selenite needles from Mineral Creek, south of the Ray Mine, in Pinal County, Arizona.

Thanks to Jim Simpson's auction on eBay for the specimen and full-size image!

Azurite
on Quartz

An interesting specimen of azurite on waterworn quartz from Bisbee, Cochise County, Arizona.

Thanks to Roxanna Wright's auction on eBay for the specimen!

Azurite and
Malachite

Two pieces of azurite and malachite from the Apex (Dixie) Mine in Washington County, Utah.

Thanks to Scott Lewis's auction on eBay for the specimens!

Row 9

Azurite and
Malachite

I don't buy cut and polished specimens very often, but this azurite, malachite, and tenorite miniature's an exception!

Thanks to Dave Hayward at Lucky Strike Minerals for the specimen and the image!

Azurite

A striking large miniature of azurite clusters on montmorillonite clay from Namatgira, Gardner Range, Northern Territory, Australia. It has a Hewin's Minerals (Tucson) tag.

Thanks to Walter Mroch's auction on eBay for the specimen and the image!

Berzelianite

This miniature of black berzelianite (copper (I) selenide) in calcite is from the type locality of the Skrikerum Mine, Valdemarsvik, Östergötland, Sweden and was obtained in the early 1960s by Harry Uhl. It's dimorphic with bellidoite.

Thanks to Jennings "Beau" Gordon's (Jendon Minerals) auction on eBay for the specimen and the image!

Row 10

Betekhtinite

Betekhtinite's a copper sulfide with a small amount of iron and lead - this nearly pure thumbnail is from the Twin Pocket, Mine #31, Dzhezhazgan, Kazakhstan.

Thanks to Thomas Bee's auction on eBay for the specimen!

Boothite

Beautiful sky-blue massive boothite (copper sulfate heptahydrate) on matrix from the Grand Reef Mine, Graham County, Arizona. As is typical of the copper sulfate minerals, the outer surface has weathered to a lighter blue - the larger image (bottom row, middle) shows the true rich blue color. Boothite's a member of the melanterite group.

Thanks to Mike Keim at Marin Minerals for the specimen and the image!

Bornite

Bornite (copper iron sulfide) is also known as "peacock ore" or erubescite - the iridescent coloring is tarnish. This is the most colorful of the bunch that I have.

Row 11

Botallackite

The rarest of the atacamite polymorphs, this miniature of bright green botallackite (a copper hydroxychloride) on matrix was collected in the mid-1990s from the Dooneen Mine, Allihies, Beara Peninsula, County Cork, Ireland. It's a polymorph with atacamite, clinoatacamite, and paratacamite. Ex: George Stevens Minerals and Lindsay & Patricia Greenbank collections.

Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen and the image!

Brochantite

This miniature of brochantite (a copper hydroxysulfate) on a limonite matrix comes from the 79 Mine in Hayden, Gila County, Arizona.

Thanks to Chris Korpi at Pangaea Minerals for the specimen!

Brochantite

A beautiful thumbnail of brochantite on quartz from the Blanchard Mine, Bingham, Socorro County, Hansonburg District, New Mexico.

Thanks to Emilie & Ron Kendig's auction on eBay for the specimen!

Row 12

Brochantite

A beautiful miniature of green brochantite and blue linarite from the 2003 find in Morocco.

Thanks to Wright's Rock Shop's table at the 2004 Carnegie Gem & Mineral Show for the specimen!

Calciovolborthite

When calcium replaces part of the copper in volborthite, it sometimes occurs in bright olive-green balls of stacked crystals as in this specimen from the Monument #1 Mine in Navajo County, Arizona. Calciovolborthite is also known as tangeite and forms a series with conicalcite, its arsenate analog.

Thanks to Veronica Matthews's auction on eBay for the specimen!

Calciovolborthite

This is a beautiful small cabinet chunk of sandstone with a ½" diameter calciovolborthite flower from Telluride, San Miguel County, Colorado. The closeup (larger image, bottom right) shows an unidentified encrustation that phosphoresces white under longwave UV.

Thanks to Bill Awald's auction on eBay for the specimen!

Row 13

Callaghanite

Callaghanite's a hydrated copper magnesium hydroxycarbonate - these royal-blue crystals on probable calcite on matrix are from Gabbs, Nye County, Nevada.

Thanks to Adam Larson at Adam's Mineralsfor the specimen!

Thanks also to Stephen Hernley for the compositional update!

Carbonatecyanotrichite

Gorgeous tufts of bright blue carbonate-cyanotrichite from the 2002 find at the Qinqlong Mine, Guizhou Province, China. Some of the cyanotrichite specimens from this locale were analyzed and found to be carbonatecyanotrichite (where carbonate replaces some of the sulfate) - subsequently all specimens from here should so be considered.

Thanks to Darrel Merke's (Proton Minerals) auction on eBay for the specimen and the images!

Chalcanthite

A nice specimen of chalcanthite (copper sulfate pentahydrate) from Pinal County, Arizona. Like most chalcanthites, when taken out of their desert environment, this one's slowly deteriorating.

Row 14

Chalcoalumite

Chalcoalumite is a hydrated copper aluminum hydroxysulfate - this specimen from the type locality of Bisbee, Cochise County, Arizona also has azurite and an unidentified light green crust. It forms incomplete series with nickelalumite, where nickel replaces some of the copper and nitrate replaces less than half of the sulfate - when the nitrate predominates, it becomes mbobomkulite.

Thanks to Dan Wienrich at Dan & Jill Weinrich for the specimen and the image!

Chalcocite

Chalcocite is copper (I) sulfide and another important copper ore. This one's from the famous Flambeau Mine near Ladysmith, Rusk County, Wisconsin.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Chalcocite

An excellent sharp chalcocite crystal from St. Just, Cornwall, England.

Thanks to Alexander Falster's auction on eBay for the specimen and the image!

Row 15

Chalcophyllite

Blue plates of chalcophyllite, a hydrated copper aluminum hydroxysulfatoarsenate, from the Majuba Hill Mine, Copper Stope, Pershing County, Nevada.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Chalcopyrite

Chalcopyrite is a copper iron sulfide (as is bornite) and the most important copper ore. This massive miniature's from the Groundhog Mine in Grant County, New Mexico. It forms a series with eskebornite, its selenide analog.

Chalcopyrite

This is one of the most striking pieces in my collection - big, shiny chalcopyrites in between parallel "potato chips" of white calcite. It's from Cavnic, Maramures County, Romania.

Thanks to Chris Korpi at Pangaea Minerals for the specimen!

Row 16

Chalcopyrite

This is a really neat little specimen - it's millimeter-sized chalcopyrite and specular hematite crystals with goethite on calcite. There's also a few larger calcite crystals on top of this Peruvian specimen.

Chalcopyrite

Somewhat tarnished (but typical) chalcopyrite with calcite from French Creek, Chester County, Pennsylvania.

Thanks to Terri Zahorniak's auction on eBay for the specimen!

Chalcopyrite on
Dolomite

Bright shiny tetrahedrons of chalcopyrite and small clusters of calcite are sprinkled on tan dolomite in this specimen from Schlema, Erzgebirge, Saxony, Germany.

Thanks to Walter Mroch's (The Gem and Mineral Exploration Company) auction for the specimen!

Row 17

Chalcopyrite

This is an absolutely gorgeous specimen of chalcopyrite with sphalerite and quartz from the Huaron Mining District, Cerro de Pasco, Peru! The contrast of colors and shapes is fantastic.

Thanks to the Nature's Expression's table at the 2000 Carnegie Gem & Mineral Show for the specimen!

Chalcopyrite

Big golden (some with an iridescent coating) chalcopyrite crystals en masse comprise this miniature from Mexico.

Thanks to Mary Sue Bailey's auction on eBay for the specimen and images!

Chalcopyrite

A beautiful miniature cluster of sharp chalcopyrites from Peru.

Thanks to Walter Mroch's (The Gem and Mineral Exploration Company) auction for the specimen and the image!

Row 18

Chalcopyrite
and
Sphalerite

Another gorgeous chalcopyrite and sphalerite miniature with a small quartz cluster containg a highly modified galena crystal (large image, bottom row, right). This one's from the South Petrovitsa Orebody, Borieva Complex, Madan Orefields, S. Rhodope Mountains, Bulgaria and was mined during 2002.

Thanks to North Star Minerals's table at the 2002 Carnegie Gem & Mineral Show for the specimen!

Chalcopyrite

A beautiful small cabinet specimen of "iridescent rainbow" chalcopyrite from the Brushy Creek Mine, Reynolds County, Missouri. The "iridizing" process is a natural one using cold temperatues and discovered by Stan Esbenshade of Midwest Minerals and Mining.

Thanks to Eric Greene's (Treasure Mountain Mining) auction on eBay for the specimen!

Chrysocolla

Chrysocolla is a hydrated copper aluminum hydroxysilicate, used as a copper ore when sufficiently available. The color varies on this Arizona one from blue-green to green at the edges and high points. This one's hard enough to be chrysocolla-impregnated quartz (as is often the case), and named "gem silica" in the jewelry trade.

Row 19

Chrysocolla

Three pieces of Arizona chrysocolla - this is the softer non-silicified variety.

Thanks to Paul Cordalis' auction on eBay for the specimens!

Chrysocolla

This chrysocolla's from Morenci, Arizona - it appears to be on a covellite matrix along with malachite and some light green mineral (upper right) that I haven't yet identified.

Chrysocolla

A very nice druse of (silicified) chrysocolla from Peru.

Row 20

Chrysocolla

This is a gorgeous thumbnail of silicized chrysocolla from the Inspiration Mine, Globe-Miami District, Gila County, Arizona.

Thanks to the Carnegie Natural History Museum Store for the specimen!

Chrysocolla
on Malachite

Chrysocolla on malachite and malachite elsewhere on this specimen (probably) from the Ray Mine in Arizona.

Thanks to Martha Crawford's auction on eBay for the specimen!

Chrysocolla

A showy miniature of a chrysocolla-filled fissure dusted with tiny quartz crystals from Zacatecas, Mexico. Ex: Reo N. Pickens Collection.

Thanks to Colleen Gibbons' auction on eBay for the specimen!

Row 21

Claraite with
Schulenbergite

A beautiful combination miniature of royal blue claraite and aqua schulenbergite on matrix from Weisser Schrofen, Brixlegg, Tyrol, Austria - they're both hydrated copper zinc hydroxycarbonates. There's also a tiny bit of a light green unidentified mineral (larger image, bottom row, center) and some (probable) chalcocite (larger image, bottom row, right).

Thanks to Chris Auer's (Eureka Micromounts) auction on eBay for the specimen and the image!

Clinoclase on
Cornubite

This specimen from the Majuba Hill Mine, Pershing County, Nevada has tiny deep blue clinoclase (a copper hydroxyarsenate) crystals on a thin layer of green cornubite (another copper hydroxyarsenate). It's dimorphous with gilmarite.

Thanks to Rory Howell's auction on eBay for the specimen!

Clinoclase

More clinoclase - this miniature's from the Murdock Mine, Plumas County, California.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Row 22

Clinoclase

Another Majuba Hill clinoclase - the crystals on this one are a bit bigger and brighter.

Thanks to Walter Mroch's (The Gem and Mineral Exploration Company) auction for the specimen and the image!

Clinoclase

A highly esthetic miniature of two flat radial clinoclases from the Tin Stope at Majuba Hill.

Thanks to Mike Keim at Marin Minerals for the specimen and the image!

Clinotyrolite

Clinotyrolite's a hydrated copper calcium kydroxysulfatoarsenate that typically occurs (as here) as tiny blue acicular crystals. This miniature is from the Lovelock Mine, Cottonwood Canyon, Churchill County, Nevada. Ex: Costigan's Minerals West.

Thanks to Robert Stoufer's auction on eBay for the specimen and the image!

Row 23

Colusite

Colusite's a rare copper vanadium tin sulfosalt that occurs in bronze-colored masses, as in this micromount from the type locality of the Colusa Claim (East Colusa Mine), Butte, Silver Bow County, Montana.

Thanks to Thomas Bee's auction on eBay for the specimen and the image!

Colusite

Another specimen from the type locality, this miniature comprises colusite and pyrite in a quartz matrix.

Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen and the image!

Conichalcite

A small cabinet conichalcite (a copper calcium hydroxyarsenate with a few calcite crystals on top from Mina Ojuela, Mapimi, Durango, Mexico. It forms three series; one with austinite, where zinc replaces the copper, another with calciovolborthite, where the vanadate ion replaces the arsenate, and a third with cobaltaustinite, where cobalt replaces the copper.

Row 24

Conichalcite

Another conichalcite (and again, with calcite) miniature from the Ojuela Mine.

Thanks to Juan Angel Tort-Figueroa of Torreon, Mexico, for the specimen!

Connellite

Connellite's a complex copper hydroxylchlorosulfate that forms tiny acicular crystals, as on this miniature with tenorite and chrysocolla on a coarsely crystalline cuprite matrix from Bisbee, Cochise County, Arizona. It forms an incomplete series with buttgenbachite, its (hydroxychloro)nitrate analog.

Thanks to David H. Garske's (MINERALS and MORE) auction on eBay for the specimen!

Copper Ores

This is a large cabinet specimen of mixed copper ores from Morenci, Arizona - the large photo shows that there's azurite, malachite, chalcotrichite, crysocolla, turquoise, and probably a lot more minerals here. This one's really fun to look at under a microscope!

Row 25

Copper Ores

As with my other mixed copper ore specimens, it's hard to pick the predominant ore here.

Copper Ores

Azurite and malachite (at least), probably from Arizona.

Thanks to Joana Pomenta's auction on eBay for the specimen!

Cornetite

Cornetite's a rare copper hydroxyphosphate - this one's from the type locality of the Star of the Congo Mine, Lubumbashi, Katanga, Republic of the Congo. It forms an incomplete series with clinoclase.

Thanks to Thomas Bee's auction on eBay for the specimen and the image!

Row 26

Cornetite

A gorgeous large cabinet piece of cornetite also from the type locality (Star of the Congo Mine).

Thanks to Tony Smith's auction on eBay for the specimen and the images!

Cornetite

An extremely rare double-terminated cornetite crystal (8mm) from the Star of the Congo Mine.

Thanks to Thomas Bee's auction on eBay for the specimen and the images!

Cornubite

From the Majuba Hill Mine, Copper Stope, Pershing County, Nevada - cornubite (another copper hydroxyarsenate) a dimorph of cornwallite.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Row 27

Cornwallite

Small radiating clusters of dark-green cornwallite (a dimorph of cornubite) fill the microvugs in this specimen from the Centennial Eureka Mine in Juab County, Utah.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Cornwallite

A miniature of botryoidal cornwallite-covered quartz from the Lodi 4 MIne, Chilcoot, Plumas County, California.

Thanks to John Sobolewski's auction on eBay for the specimen!

Covellite

Covellite (copper (II) sulfide) with pyrite veins from somewhere in Montana. The larger picture shows the unique diagnostic test for covellite; when dampened, the color shifts from blue to purple. There are some pale green radiating clusters of needles on the back that appear to be aurichalcite. It forms an incomplete series with klockmannite, its selenide analog.

Thanks to Amethyst Galleries, Inc. for the specimen!

Row 28

Covellite

This specimen of covellite, pyrite, and chalcopyrite comes from the Leonard Mine near Butte, Silver Bow County, Montana, the best United States occurence.

Thanks to Joseph George's (Cascade Scepters) auction on eBay for the specimen!

Covellite

A superb old miniature of covellite from someplace other than the Leonard Mine - the Grace Mine near Morgantown, Berks County, Pennsylvania. The Grace Iron (magnetite) Mine, closed in 1977, was the first (1948) instance of an ore discovery resulting from an airborne magnetometer survey.

Thanks to Frank Butler's auction on eBay for the specimen!

Cuprite

This specimen from the Cole Shaft in the Copper Queen Mine near Bisbee, Cochise County, Arizona has a vein of cuprite (copper (I) oxide), chalcotrichite (hairlike cuprite), and copper crystals running through it.

Thanks to Chris Korpi at Pangaea Minerals for the specimen!

Row 29

Cuprite

Dark red cuprite from the Chino Pit, Santa Rita, Grant County, New Mexico - too bad it's only a small thumbnail, the crystals are beautiful!

Thanks to Bob Keller at the Arizona Mineral Company for the specimen and the images!
Image copyrighted by the Arizona Mineral Company.

Cuprite

This cuprite's from the Mashamba Mine, Kolwezi, Shaba Province, Congo and has some malachite with it.

Thanks to Greg Holland at the Stone Haven Mineral Shoppe for the specimen!

Cuprite and
Malachite

This is a really pretty mix of colors - reddish-puple cuprite and bluish-green malachite - on this Arizona specimen. There's also some native copper.

Thanks to Paul Cordalis's auction on eBay for the specimen!

Row 30

Cuprite

Beautiful bright red massive cuprite from the famous cuprite mine at Onganja (Ogonja), Windhoek District, Namibia.

Thanks to Mike Keim at Marin Minerals for the specimen!

Cuprite

A sparkly thumbnail of tiny cuprite crystals from the Ray Mine, Pinal County, Arizona.

Thanks to Margaret's (Lidco) auction on eBay for the specimen!

Cuprite

Very nice cuprite crystals from Tsumeb, Namibia.

Thanks to Frank Butler's auction on eBay for the specimen and image!

Row 31

Cuprite

An excellent cuprite crystal from the Shaba Province in Congo - its longest dimension is 2cm!

Thanks to Walter Mroch's (The Gem and Mineral Exploration Company) auction for the specimen and the image!

Cuprite

Beautiful dark red gemmy cuprite from the Great Australia Mine, Cloncurry, Queensland, Australia.

Thanks to Mike Keim at Marin Minerals for the specimen and the images!

Cuprite

A big (2 x 1 cm) cuprite crystal in hematitic matrix from the Holbrook Extension of the Lavender Pit, Bisbee, Cochise County, Arizona.

Thanks to Mark Pecha's auction on eBay for the specimen!

Thanks also to Walter Mroch for the locale clarification!

Row 32

Cuprite

A miniature of massive cuprite in matrix from the Ojuela Mine, Mapimi, Durango, Mexico.

Thanks to Juan Angel Tort-Figueroa of Torreon, Mexico, for the specimen!

Cuprite

Small sharp cuprite octahedrons on matrix from the Mont-Roc Mine, Tarn, France.

Thanks to Val Collins' auction on eBay for the specimen and the image!

Cuprite, var.
Chalcotrichite

Beautiful clusters of tightly matted chalcotrichite (the fibrous habit of cuprite) from Ray, Arizona.

Thanks to Kevin Shelton's auction on eBay for the specimen!

Row 33

Cuprite, var.
Chalcotrichite

More chalcotrichite from Ray, Arizona - the habit here is more compacted fibers than fibrous sprays.

Thanks to Margaret's (Lidco) auction on eBay for the specimen!

Cuprite, var.
Chalcotrichite

The fissures in this quartzite matrix are filled with beautiful chalcotrichite (much redder than it appears here) - this specimen's also from the Chino Mine in southwestern New Mexico. There's also native copper present.

Thanks to Roxanna Wright's auction on eBay for the specimen!

Cuprotungstite

A bright green thumbnail of cuprotungstite (copper hydroxytungstate) from Crystal Peak, Sierra County, California.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Row 34

Cyanotrichite

Cyanotrichite (from the Greek for "blue hair") and malachite from the Grandview Mine in Coconino County, Grand Canyon, Arizona. It's a hydrated copper aluminum hydroxysulfate and forms incomplete series with carbonatecyanotrichite and camerolaite, where carbonate and antimonate ions replace some of the sulfate ions respectively.

Thanks to Chris Korpi at Pangaea Minerals for the specimen!

Cyanotrichite

This cyanotrichite's also from the Grandview Mine - it's the classic location. This one is absolutely exquisite under a microscope - the green clusters are brochantite and there's some darker blue azurite microballs as well.

Thanks to C. Carter Rich's table at the 2000 Carnegie Gem & Mineral Show for the specimen!

Cyanotrichite

A beautiful finger miniature of cyanotrichite and brochantite from the Viegar Mine (La Vieja), Potrerillos, Atacama Province, Chile.

Thanks to Ken DeMary's auction on eBay for the specimen!

Row 35

Delafossite

A large thumbnail of black delafossite (copper iron (III) oxide) and dark-red cuprite crystals on matrix from Bisbee, Cochise County, Arizona. It forms an incomplete series with mcconnellite, its chromium (III) analog.

Thanks to Carol Crabtree's auction on eBay for the specimen!

Devilline

Devilline's a calcium copper hydroxysulfate - this one's from Kamariza, Laurion, Greece. It forms an incomplete series with serpierite, where zinc replaces some of the copper.

Thanks to Greg Holland at the Stone Haven Mineral Shoppe for the specimen and the closeup image!

Digenite

Although not very well known, digenite (another copper sulfide, 78% copper) is prevalent enough to be mined for copper. This miniature's from Butte, Silver Bow County, Montana.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Row 36

Dioptase

Dioptase is a hydrated copper metasilicate - this one's from Tsumeb, Namibia - and fairly rare, at least in good quality crystals.

Dioptase

Most of the gemmy dioptase comes from the Tsumeb Mine, Tsumeb, Namibia. This thumbnail also has some calcite with it.

Thanks to Shields Flynn at Trafford | Flynn for the specimen and the image!

Dioptase

This dioptase is from the Mammoth Mine, Tiger, Pinal County, Arizona - the Arizona dioptases are usually smaller, less gemmy, and more acicular (needle-like).

Thanks to Gary Lozonne at Lozonne's Minerals for the specimen!

Row 37

Dioptase

A beautiful (though uniformly translucent), classic rhombohedral-terminated dioptase crystal perched on a matrix along with some bright apple-green duftite from Tsumeb, Africa.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Dioptase

Another dioptase thumbnail from Tsumeb.

Thanks to Rory Howell's auction on eBay for the specimen!

Dioptase

This dioptase thumbnail is from the type locality of Altyn-Tyube, Kirghiz, Kazakhstan.

Thanks to Rory Howell's auction on eBay for the specimen!

Row 38

Dioptase

Dioptase, cuprite, and chrysocolla on a (probably) malachite-coated matrix from Tsumeb. Some of the dioptase (upper right, larger image) is greener than the rest!

Thanks to Daniel W. Kepler's auction on eBay for the specimen!

Dioptase

More Arizona dioptase - this gorgeous acicular miniature's from the Christmas Mine in Gila County, Arizona.

Thanks to Walter Mroch's (The Gem and Mineral Exploration Company) auction for the specimen!

Djurleite

A matrix of green hornfels hosts steel-gray djurleite (another copper sulfide) in this miniature from the Teeter Quarry, southeast of Gettysburg, Adams County, Pennsylvania.

Thanks to Richard Koontz's auction on eBay for the specimen!

Row 39

Enargite
on Pyrite

Shiny black enargite (a copper arsenic sulfosalt) on pyrite from the Huanzalá Mine, Dos de Mayo Province, Huánuco, Peru. Enargite from some locales (Agua Rica, Catamarca Province, Argentina - similar in mineralization to the famous Butte, Montana site) can have 1) significant lead substituting for the arsenic and 2) a tin-vanadium mix also substituting for the arsenic - approaching colusite in composition. It's a dimorph with luzonite.

Thanks to Alan & Marsha Day at Mineral Exploration Services for the specimen!

Euchroite

Euchroite's a hydrated copper hydroxyarsenate - this beautiful small thumbnail of pure euchroite is from the type locality of Lubietová (Libethen), Stredoslovenský Kraj, Slovak Republic.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen and the image!

Eukeradumpite

A beautiful thumbnail of a new (2009) mineral with an ugly name, eurekadumpite occurs here as cyan balls and rosettes on matrix from the type locality of the Centennial Eureka mine dump in the East Tintic Mtns, Juab County, Utah.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Row 40

Famatinite

A miniature of pinkish-gray famatinite in an enargite and tennantite matrix from Flathead County, Montana. Ex: Continental Minerals, 1970s.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Glaukosphaerite

Glaukosphaerite's a copper nickel hydroxycarbonate and a member of the rosasite group (the nickel analog of rosasite). This miniature is from the KM3 Mine at Lavrion, Greece.

Thanks to Lars Jorgensen at Geosystems for the specimen!

Haydeeite

An excellent micro of deep greenish-blue haydeeite on matrix from the type locality of the Haydee Mine, Salar Grande, Iquique Province, Tarapacá Region, Chile. Haydeeite is a copper magnesium hydroxychloride and is a member of the atacamite group.

Thanks to Paolo Bracci's auction on eBay for the specimen and the image!

Row 41

Herbertsmithite

An excellent thumbnail of dark-green herbertsmithite (a copper zinc hydroxychloride) from the San Francisco Mine in the Sierra Gorda District, Tocopilla Province, Antofagasta Region, Chile. It is polymorphous with Kapellasite and isostructural with Gillardite. It also has a unique structure (a triangular lattice) among minerals and for this reason, synthetic herbertsmithite was being studied (2007) as a new form of matter, a string-net liquid.

Thanks to Michael Cline's auction on eBay for the specimen and the images!

Juangodoyite

An excellent micromount of bright blue juangodoyite (an anhydrous copper sodium carbonate) on matrix from the type locality of the Santa Rosa Mine, Tarapaca Province, Chile. It has a Simkev Micromounts tag. Juangodoyite's a new mineral - the name was approved in 2004.

Thanks to Michael Swanson's auction on eBay for the specimen and the image!

Khaidarkanite

A very rare small thumbnail of bright sky-blue tufts of khaidarkanite (a hydrated copper aluminum sodium hydroxyfluoride) on matrix from the type locality of Khaidarkan, Fergana Valley, Osh, Krygyzstan.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen and the image!

Row 42

Kinoite

This kinoite, a copper calcium hydroxysilicate, (as does most specimen-grade kinoite) comes from the Christmas Mine in Gila County, Arizona. Most of the kinoite from there (this one included) is covered with tiny colorless pinacoidally-terminated apophyllite crystals.

Thanks to Gary Lozonne at Lozonne's Minerals for the specimen and the image!

Kinoite

Kinoite (again from the Christmas Mine) - this time more widely disseminated and without much covering apophyllite.

Thanks to Mike Keim at Marin Minerals for the specimen!

Kolwezite

A cute thumbnail of (almost type-locality) grayish-green kolwezite (copper cobalt carbonate) from Mashamba West Mine, Kolwezi, Shaba, Congo.

Thanks to John Sobolewski's auction on eBay for the specimen!

Row 43

Krohnkite

Krohnkite (kroehnite, kröhnite) is a hydrated copper sodium sulfate - this miniature of granular and massive krohnite comes from the type locality of Chuquicamata, Calama, Antofagasta Province, Chile.

Thanks to Anthony Jones' auction on eBay for the specimen!

Krutaite

A micromount of metallic krutaite crystals on matrix from the El Dragón mine, Quijarro Province, PotosÍ Department, Bolivia. It forms a series with trogtalite where cobalt replaces the copper.

Thanks to Val Collins' auction on eBay for the specimen!

Ktenasite

A small cabinet specimen of ktenasite (a hydrated copper zinc hydroxysulfate) on matrix from the mid-1970s find on the 31 stope at the 79 Mine, Hayden, Gila County, Arizona.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Row 44

Lammerite

A miniature of forest-green lammerite (a copper phosphatoarsenate) and a little bit of (probable) blue lemanskiite (larger image, center) on matrix from the Abundancia Mine in Guanaco, Taltal, Antofagasta, Chile.

Thanks to the House of Onyx for the specimen!

Lammerite

A large thumbnail of lammerite with blue lavendulan from the El Guanaco Mine, Guanaco, Antofagasta, Chile.

Thanks to Anthony Jones' auction on eBay for the specimen!

Langite

Langite's a "hydrated brochantite", copper hydroxysulfate with two molecules of water - it's also dimorphous with wroewolfeite. The closeup shows possible rare langite crystals on this small cabinet specimen from Richtárová, Spania Dolina, Czechoslovakia.

Thanks to Emilie & Ron Kendig's auction on eBay for the specimen and image!

Row 45

Lavendulan

This micro of lavendulan, a rare hydrated copper sodium calcium chloroarsenate, comes from the El Guanaco Mine, Guanaco, Antafogasta Province, Chile. It's the chloroarsenate analog of sampleite, a dimorph of lemanskiite, and forms an incomplete series with zdenekite, where lead replaces the calcium.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Lemanskiite

This is a very nice miniature of a newly-approved (2001) mineral, lemanskiite (a hydrated copper calcium sodium chloroarsenate), with malachite on matrix from the type locality of the El Guanaco Mine, Taltal, Antofagasta, Chile. It's a dimorph of lavendulan. The green mineral accompanying it is probably lammerite. The label is signed by Chet Lemanski!

Thanks to the House of Onyx for the specimen!

Libethenite

Libethenite's a fairly rare copper hydroxyphosphate - this one's from Peru, though the type locale is Libethen (derived from the German name of the village Lubietova in Slovakia).

Thanks to Roger Hoek at ARCH Mineralsfor the specimen and the image!

Row 46

Libethenite

A small cabinet specimen of drusy libethenite from Lubumbashi, Shaba, Congo. Ex: Rock Currier Collection.

Thanks to Saul Krotki's auction on eBay for the specimen and the images!

Libethenite

An excellent 12mm libethenite crystal from the Mindola open pit, Rokana Mine, Kitwe, Zambia.

Thanks to Mike Keim at Marin Minerals for the specimen and the images!

Lindgrenite

Lindgrenite is a copper hydroxymolybdate - it was tempting to put this Childs Aldwinkle Mine, Pinal County, Arizona thumbnail with the molybdates since there are so few of them.

Thanks to Adam Larson's (Adam's Minerals) auction on eBay for the specimen!

Row 47

Liroconite

Liroconite's a fairly rare hydrated copper aluminum hydroxyarsenate - I don't have a location for this one.

Thanks to Martha Crawford's auction on eBay for the specimen!

Litidionite

Litidionite (or lithidionite) is a rare copper silicate (with a little sodium and potassium) - this miniature comes from the type locality of Mt. Vesuvius, Naples Province, Campania, Italy. It forms an incomplete series with fenaksite, where iron replaces the copper.

Thanks to Thomas Bee's auction on eBay for the specimen!

Ludjibaite

Teal microcrystal clusters of ludjibaite (it's a copper hydroxyphosphate and the rare trimorph of pseudomalachite and reichenbachite) on matrix from Shaba, Congo. There's some transparent grass-green libethenite on the back.

Thanks to Steve Bringe's auction on eBay for the specimen and image!

Row 48

Luetheite

A small cabinet specimen of microcrystalline greenish-blue luetheite (a hydrated copper aluminum hydroxyarsenate), with scattered small areas of other rare copper minerals (including chenevixite, its copper iron analog) on rhyolite from the type locality of the Patagonia District, Santa Cruz County, Arizona. It has labels from Joe Cilen and A. L. McGuinness.

Thanks to David H. Garske's (MINERALS and MORE) auction on eBay for the specimen and the image!

Luzonite

Luzonite's a copper sulfarsenide (and a dimorph of enargite) and is named after Luzon Island in the Phillipines. This one, with its associated chalcopyrite, is from the Leonard Mine in Silver Bow County, Montana.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Malachite

A chunk of massive malachite with a streak of (probably) chrysocolla - this is another one that's been in my collection (probably from Arizona) for a long time.

Row 49

Malachite

Fibrous grass-green malachite from Zaire. The top and bottom layers surrounding the fibers are very dark olive-brown - I'm not sure what they are.

Malachite

A beautiful deep green microcrystalline stalactite chunk of malachite from Zaire.

Malachite

A dark-green crystalline malachite with a little bit of butterscotch-colored quartz in very small cavities on the back. This one is also from the big copper mines at Zaire.

Row 50

Malachite

This velvet malachite comes from the Star of the Congo Mine in Shaba Province, Congo.

Thanks to Doug Wahl's auction on eBay for the specimen and the image!

Malachite

A little ball of malachite is hiding in the quartz-lined vug in this thumbnail from Concepcion del Oro, Zacatecas, Mexico. The back side has some unidentified olive-green coating.

Thanks to Frank Butler's auction on eBay for the specimen!

Malachite on
Chrysocolla

Another Shaba malachite - this one has gemmy green malachite crystals on botryoidal malachite on chrysocolla.

Thanks to Doug Wahl's auction on eBay for the specimen!

Row 51

Malachite

Beautiful green (some transparent) malachite crystals on limonite with a few patches of hematite, probably from the Tintic range in central Utah.

Malachite

Beautiful crystalline green malachite with yellow fluorite and scattered aurichalcite on milky quartz comprise this specimen from the Blanchard Mine, Bingham, Socorro County, New Mexico.

Thanks to Don Goodell's auction on eBay for the specimen!

Malachite

A gorgeous thumbnail of fuzzy malachite from the Luisha Mine, Shaba Province, Congo.

Thanks to Adam Larson's (Adam's Minerals) auction on eBay for the specimen!

Row 52

Malachite
and Cuprite

The cuprite crystal pocket in this massive cuprite from the Tsumeb Mine, Tsumeb, Namibia, is coated with tiny malachites.

Thanks to Chris Korpi at Pangaea Minerals for the specimen!

Malachite

I am tempted to call this brochantite - the crystals are too green and transparent to be malachite. There's some selenite on the bottom of this specimen (probably) from the Ray Mine, Pinal County, Arizona.

Thanks to Martha Crawford's auction on eBay for the specimen!

Malachite
and Calcite

A beautiful thumbnail of calcite crystals on what appears to be a malachite and limonite matrix from Mexico.

Thanks to Miao Yang's auction on eBay for the specimen!

Row 53

Malachite

A mint-green cross-section of a double malachite stalactite section - not sure where it's from, maybe the Democratic Republic of Congo (Zaire).

Thanks to Tammy Murphy's auction on eBay for the specimen!

Thanks also to Charlie Hunter for the correction from my "stalagmite" to stalactite!

Mcguinnessite

When the zinc in rosasite is replaced by magnesium, it becomes mcguinessite - this specimen of bluish-green fibrous sphericular mcguinnessite (and tiny colorless rhombs of vuagnatite, a calcium aluminum hydroxy(neso)silicate) on matrix comes from the type locality of the Copper King Mine, Red Mountain, near Ukiah in Mendocino County, California. There's also a (copy of a) signed label by A. L. McGuinness, its discoverer.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Mixite

Beautiful sprays of mixite, a rare hydrated bismuth copper hydroxyarsenate, hug the quartz matrix on this specimen from Wittichen, Germany. Mixite occurs in a wide range of colors - there's also some white mixite present.

Thanks to Emilie & Ron Kendig's auction on eBay for the specimen!

Row 54

Mohawkite

Mohawkite isn't a proper mineral name - this miniature with copper (as does almost all mohawkite) comes from the Mohawk copper mines in the Mohawk-Ahmeek area in Keweenaw County, Michigan. Mohawkite is domeykite, a copper arsenide, with additional cobalt, silver, nickel, and iron. The picture shows the sawn but unpolished back side - the front is highly polished with a polymer coating (it tarnishes quickly to brown) and was just too hard to photograph!

Thanks to Mike Healey's auction on eBay for the specimen!

Mohawkite

In this miniature, the mohawkite grains are widely dispersed and contrast beautifully with the white matrix.

Thanks to Don Smoley's Minerals & Gems' table at the 2003 Carnegie Gem & Mineral Show for the specimen!

Mooihoekite

A tiny rosette of brass-colored mooihoekite - a copper iron sulfide - on matrix from Nye, Stillwater, Montana. It forms an incomplete series with talnakhite where nickel replaces some of the iron.

Thanks to Ingo Drescher's auction on eBay for the specimen!

Row 55

Murdochite

Murdochite's an obscure copper lead oxyhalide that here forms submillimeter shiny black cubes on the quartz matrix. This small cabinet specimen from the Mex-Tex Mine near Bingham in Socorro County, New Mexico also has lavender fluorites, clear colorless gypsum, and aurichalcite!

Thanks to Marcus Origlieri at The Mineral Zone for the specimen!

Nekrasovite

This miniature of light-copper-colored nekrasovite (a copper vanadium iron complex sulfosalt) intermixed with other species is from the type locality of the Kairagach Gold Deposit, Kuramin Mountains, eastern Uzbekistan.

Thanks to Thomas Bee's auction on eBay for the specimen and the image!

Nissonite

Nissonite's a rare hydrated copper magnesium hydroxyphosphate - this type locality specimen of bluish-green nissonite flakes on matrix is from the Llanada copper mine in the Panoche Valley, San Benito County, California. It's named after William Nisson of the (now defunct) California Bureau of Mines Museum.

Thanks to Emilie & Ron Kendig's auction on eBay for the specimen!

Row 56

Olivenite

This specimen of olivenite (yet another copper hydroxyarsenate and named for its typical olive color) on limonite is from the famous Christina Mine, Laurion, Greece locality. It forms a series with adamite, its zinc analog.

Thanks to Tom Klinepeter's auction on eBay for the specimen!

Olivenite, var.
Leucochalcite

An excellent miniature of leucochalcite on matrix from the Majuba Hill Mine, Pershing County, Nevada. Leucochalcite now refers to the white acicular variety of olivenite - the older Dana definition was a separate mineral (still a copper hydroxyarsenate, Cu3As2O8 · Cu(OH)2 · 2H2O, but NOT olivenite).

Thanks to Stephen Hernly's auction on eBay for the specimen and the images!

 
Row 57

Papagoite

An excellent thumbnail of blue papagoite (a copper calcium aluminum four-ring cyclosilicate) on matrix from the type locality of the Ajo Mine, Pima County, Arizona.

Thanks to C. Carter Rich's table at the 2005 Carnegie Gem & Mineral Show for the specimen!

Paratacamite, var.
Anarakite

Sometimes zinc can replace some of the copper in paratacamite - this miniature of granular anarakite (or zincian paratacamite) and cerussite is from the type locality of the Kali Kafi Mine Anarak District, Desht e Kavir, Iran.

Thanks to Anthony Jones' auction on eBay for the specimen and the image!

Parnauite

Bright blue-green crystals of parnauite (a hydrated copper hydroxyxulfatoarsenate) on a miniature matrix from the (very near type locality) Copper Stope, Meyler Mine, Majuba Hill, Pershing County, Nevada.

Thanks to Jon Gladwell's (Myrddin Emrys Limited) auction on eBay for the specimen and image!

Row 58

Partzite

A coating of light-olive-green partzite (copper antimony hydroxyoxide) on a small cabinet matrix from almost the type locality of Mono County, California. Ex: L.L. Hubbard Collection (State Geologist of Michigan from 1893 to 1899) - the specimen dates from the first quarter of the 20th century.

Thanks to Thomas Bee's auction on eBay for the specimen and the images!

Philipsburgite

Philipsburgite is a hydrated copper zinc hydroxyarsenophosphate - this miniature (on a quartz matrix) is from the type locality, the now-closed Black Pine Mine, near Philipsburg, Granite County, Montana. It forms an incomplete series with kipushite, its phosphate analog.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Philipsburgite

A Black Pine Mine thumbnail of dark-green philipsburgite - ex: James Carryer Collection.

Thanks to the Shadyside Mining Company table at the 2003 Carnegie Gem & Mineral Show for the specimen!

Row 59

Planchéite

Another one of the many copper silicates, planchéite (often marketed as katangite) occurs here as tiny clusters over chrysocolla and malachite - this small cabinet piece is from the new find (Fall 2001) at the Kalukuluku Mine in Katanga Province, Congo. It forms an incomplete series with shattuckite.

Thanks to Eric Greene's (Treasure Mountain Mining) auction on eBay for the specimen!

Posnjakite

Light bluish-green druse of posnjakite (a "hydrated brochantite", copper hydroxysulfate with one molecule of water), with auricalcite and chalcopyrite on matrix from Capellton, New Brunswick, (can't find this locale - it may be the Capelton Mine, Quebec) Canada - the larger image shows a second specimen from the Ives Mine, Eastham, Quebec, Canada.

Thanks to Jennings "Beau" Gordon's (Jendon Minerals) auction on eBay for the specimen!

Pseudomalachite

This is a cute thumbnail of pseudomalachite (a copper hydroxyphosphate) and olive-green libethenite on a quartz crystal from the type locality of the Virneberg Mine, Rheinbreitbach, Westerwald, Germany. It has the original Ward's Science label from 1956. Pseudomalachite's trimorphic with ludjibaite and reichenbachite and forms an incomplete series with cornwallite, its arsenate analog.

Thanks to Bill Awald's auction on eBay for the specimen!

Row 60

Quantum Quattro Silica®

Quantum Quattro Silica® (also called "Millenium Stone") is the name given to this beautiful mixture of silicized chrysocolla, dioptase, malachite, and shattuckite with occasional smoky quartz and copper found in the late 1990s in Namibia, Africa.

Thanks to Lenora Salandi's auction on eBay for the specimen!

Renierite

This is a very rare thumbnail of renierite - a copper zinc iron germanium arsenic sulfide from the type locality of the Kipushi Mine, Kipushi, Shaba Province, Congo.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen and the image!

Richelsdorfite

Neon-blue richelsdorfite (a complex hydrated copper calcium antimony hydroxychloroarsenate) with chrysocolla and malachite on matrix from the Burrus Mine, near Reno, Washoe County, Nevada. It's a complex arsenate.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

Row 61

Rosasite

A miniature of rosasite, a copper zinc hydroxycarbonate, on matrix from the Ojuela Mine, Mapimi, Durango, Mexico.

Thanks to Dan Wienrich at Dan & Jill Weinrich for the specimen and the image!

Rosasite and
Aurichalcite

Rosasite, aurichalcite, and calcite thumbnail from Mapimi, Mexico.

Thanks to Greg Meyers' (Greg's Minerals) auction on eBay for the specimen and the image!

Rosasite

More rosasite from Mapimi, Mexico - this miniature has colorless calcite on top of rosasite on top of aurichalcite.

Thanks to Rory Howell's auction on eBay for the specimen and the image!

Row 62

Sampleite

Bright starbursts of pearly blue sampleite, a rare hydrated copper sodium calcium chlorophosphate, on matrix from the Santa Catalina Mine, Sierra Gorda, Antofagasta, Chile. The white mineral around the sampleite is gypsum. It's the chloroarsenate analog of lavendulan, and forms an incomplete series with zdenekite, where lead replaces the calcium and arsenate ions replace the phosphate.

Thanks to Thomas Bee's auction on eBay for the specimen and images!

Sampleite

An excellent miniature of sampleite crystals on matrix from the North Parkes Goldminco copper and gold mine, Parkes, Goonumbla, New South Wales, Australia. It was collected from a one-shot pocket in late 2002.

Thanks to John Sobolewski's auction on eBay for the specimen!

Serpierite

An excellent micro of bright blue serpierite (a hydrated copper zinc calcium hydroxysulfate) on matrix from the Prince Leopold Mine, Kipushi, Democratic Republic of Congo. Ex: Fred D'Esopo Collection. It's dimorphic with orthoserpierite.

Thanks to Emilie & Ron Kendig's auction on eBay for the specimen!

Row 63

Serpierite

A beautiful micro of blue serpierite crystals on very pale blue-white glaucocerinite. from the type locality of the Serpieri Mine, at the Kamariza Mines, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece.

Thanks to Michael Shannon's Shannon & Sons Minerals auction on eBay for the specimen and image!

Shattuckite

Beautiful periwinkle-blue shattuckite (a copper hydroxysilicate) with bisbeeite from the New Cornelia Pit in Ajo, Pima County, Arizona. It forms an incomplete series with planchéite. Depending on which field guide you have, bisbeeite can be listed as a variety of chrysocolla, a synonym for plancheite, or a mineral all its own - they're all copper silicates.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen and the image!

Shattuckite

A gorgeous thumbnail of shattuckite from the 2008 find in Otjikotu, Kaokoveld Plateau, Kunene Region, Namibia.

Thanks to Rick Green at Uniquely Crystalline for the specimen and the images!

Row 64

Spangolite

Spangolite's a copper aluminum chlorohydroxysulfate that usually occurs, as here in this colorful specimen from the Hilarion Adit, Laurion, Greece, as deep blue-green crusts. It's named after the prominent turn-of-the-other-century Pittsburgh collector, Norman Spang. There's also similarly-colored acicular serpierite (a calcium copper zinc hydroxysulfate), green brochantite, and red chalcotrichite crusts. The Laurion specimens are quite unique!

Thanks to Greg Holland at the Stone Haven Mineral Shoppe for the specimen and one of the closeup images!

Spangolite

Here's another spangolite - this one (along with brochantite and chrysocolla) comes from the famous Mex-Tex Mine in Bingham, Socorro County, New Mexico. The spangolite here is transparent enough to show bright cyan glints when the lighting's right!

Thanks to Keith Hayes' (KQ's Minerals) auction on eBay for the specimen and the image!

Stannite

When tin replaces half the iron in chalcopyrite, it becomes stannite (or "tin pyrite") - this miniature cluster comes from the Yaogangxian Mine, Yizhang, Hunan Province, China. Stannite's dimorphous with ferrokësterite.

Thanks to Mike Keim at Marin Minerals for the specimen and the images!

Row 65

Strashimirite

A small cabinet specimen of light-green strashimirite-coated (a hydrated copper hydroxyarsenate) matrix from the Majuba Hill Mine, Pershing County, Nevada.

Thanks to Mike Keim at Marin Minerals for the specimen and the images!

Sulvanite

A small miniature of millimeter-sized sulvanite (copper vanadium sulfide or tetrathiovanadate) crystal aggregates on calcite from Thorpe Hills, Mercur District, Tooele County, Utah. It forms a series with arsenosulvanite, where arsenic replaces part of the vanadium.

Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen and the images!

Szenicsite

Szenicsite is another copper hydroxymolybdate - it was tempting to put this Sierra Gorda (Cerro Gordo), Antofagasta, Chile thumbnail with the molybdates since there are so few of them.

Thanks to C. Carter Rich's table at the 2003 Carnegie Gem & Mineral Show for the specimen!

Row 66

Talnakhite

Bronze-colored massive talnakhite (copper iron nickel sulfide) in a sulfide matrix from the type locality of the Talnakh ore deposit near Noril'sk, western Siberia, Russia. It forms an incomplete series with mooihoekite, where iron completely replaces the nickel. This miniature has an accompanying label from Dr. David H. Garske which states that it's from the Fersman Mineralogical Museum in Russia.

Thanks to Thomas Bee's auction on eBay for the specimen!

Tennantite

Tennantite, the arsenic-rich end of the tennantite-tetrahedrite (antimony-rich) series, with sphalerite and chalcopyrite. The tennantite crystals are very complex - the crystal closeup (larger image, bottom left) shows a combination of a deltoid dodecahedron and a tristetrahedron. The other closeup (larger image, bottom right) shows a beautifully-tarnished purple chalcopyrite.

Tennantite,
var. Binnite

This is a miniature of the argentian (silver-bearing) tennantite variey named binnite - it's from the famous locality of Binnental, Switzerland and occurs here with pyrite (larger image, bottom left) and sartorite (larger image, bottom right) in a dolomite matrix. The composition lies between that of tennantite and argentotennantite. It has an antique label from the J. Bardet collection.

Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen!

Row 67

Tenorite

An excellent miniature of black tenorite (copper (II) or cupric oxide) with green malachite on shale matrix from Mount McCabe Mine, Cloncurry, Queensland, Australia. Most tenorite on the market is oxidized chrysocolla. Ex Don McOll collection.

Thanks to A. Richards' auction on eBay for the specimen!

Tenorite, var.
Melaconite

The earthy habit of tenorite is often called melaconite. This miniature of melaconite with other copper minerals comes from the San Antonio Canyon, 60 meters south of the Arizona Border in Sonora, Mexico.

Thanks to Kyle Smith's auction on eBay for the specimen and the images!

Tetrahedrite

It was difficult to decide where to place this specimen - I decided on the tetrahedrite. This specimen, with calcite and pyrite, is from the Pachapaqui district, Ancash Department, Peru.

Thanks to Anne & Charles Steuart's auction on eBay for the specimen and the image!

Row 68

Tetrahedrite

Another difficult specimen - tetrahedrite, bournonite, and jamesonite (also) from Peru.

Thanks to Chris Korpi at Pangaea Minerals for the specimen!

Tetrahedrite

Lustrous, razor-sharp tetrahedrite crystals on a calcite matrix (miniature, mined in 2001) from Cavnic, Maramures, Romania.

Thanks to the North Star Minerals' table at the 2002 Carnegie Gem & Mineral Show for the specimen!

Tetrahedrite

A classic small cabinet piece from the mines at Casapalca, Lima Department, Peru. In addition to the sharp tetras, there's micro drusy pyrite (larger image, bottom right), other sulfides, and barite.

Thanks to Eric Greene's (Treasure Mountain Mining) auction on eBay for the specimen and the images!

Row 69

Tetrahedrite,
var. Schwazite

An excellent 7mm crystal of schwazite (a variety of tetrahedrite containing up to 17% mercury) from the type locality of Schwaz, North Tyrol, Austria.

Thanks to Peter Maurer's auction on eBay for the specimen and the image!

Tlapallite

Beautiful bluish-green crusts of very rare tlapallite (a complex calcium copper lead sulfate tellurite tellurate) on matrix from the co-type locality of the Tombstone District, Arizona.

Thanks to David H. Garske's auction on eBay for the specimen and image!

Tyrolite

Tyrolite is a hydrated copper calcium arsenate - this one's from the Centennial Eureka Mine in Eureka, Juab County, Utah.

Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen!

Row 70

Tyrolite and
Leucochalcite

This specimen from the Majuba Hill Mine in Pershing County, Nevada has beautiful sprays of light aqua tyrolite and silky white leucochalcite on matrix.

Thanks to Don Goodell's auction on eBay for the specimen!

Umangite

Grayish-black grains of umangite (copper selenide) fill a vein - along with brassy tyrrellite (copper nickel cobalt selenide) grains - in this miniature from the Pearl Mine near Silverton, San Juan County, Colorado.

Thanks to Carol Crabtree's auction on eBay for the specimen!

Vésigniéite

A nice micromount of green vésigniéite (a copper barium hydroxyvanadate) rosettes on matrix from the New Cliffe Hill Quarry, Stanton Under Bardon, Leicestershire, England.

Thanks to Colleen Thomson's Thomson Minerals auction on eBay for the specimen!

Row 71

Veszelyite

Veszelyite's a beautiful bright teal hydrated zinc copper hydroxyphosphate that usually occurs in millimeter-sized widely disseminated euhedral crystals - this miniature comes from the now-closed Black Pine Mine, Granite County, Montana. Even though veszelyite has slightly more zinc than copper (0.74%), I've kept it here because it almost always occurs with other copper minerals.

Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen!

This monster 1-inch veszelyite crystal is for sale from:


Bob Patak
Shadyside Mining Company
738 Copeland Street
Pittsburgh, PA 15232
(412) 688 8088
patak@attglobal.net

Ex: James F. Carryer Collection.

Villamanínite

Charcoal-gray villamanínite (copper (I) disulfide) with probable medium-gray bravoite and golden chalcopyrite comprise this miniature from the type locality of the Providencia Mine, Cármenes District, León Province, Spain. Villamanínite can contain up to %15 nickel and there's often trace iron and cobalt present.

Thanks to Tony Smith's auction on eBay for the specimen!

Volborthite

Volborthite is a hydrated copper hydroxyvanadate that usually occurs (as here in this specimen from the Monument #1 Mine in Navajo County, Arizona) in bright lime-green scales. There's also some (probably) chrysocolla, adding a nice contrast.

Thanks to Michael Cottingham's auction on eBay for the specimen!

Row 72

Whelanite

A miniature of light-blue whelanite on matrix from the Christmas Mine, Gila County, Arizona. Whelanite has not been formally studied nor approved. The best formula for it is Cu2Ca5Si6O17(OH)2 · 4H2O - some formulas also show a carbonate cation.

Thanks to Claus Hedegaard's auction on eBay for the specimen and the image!

Woodwardite

Woodwardite's a copper aluminum hydroxysulfate and (like the minerals at Laurion, Greece and Sardinia, Italy), this miniature from County Cork, Ireland is formed as minerals discarded during mining operations combine (through proximity, weathering, and exposure to mining effluent discharges) to form new minerals and associations.

Thanks to SoCal Nevada's auction on eBay for the specimen and images!

Wroewolfeite

The Friendship Mine, Mary Tavy, Devonshire, Great Britain is the home of this wroewolfeite (a "hydrated brochantite", copper hydroxysulfate with two molecules of water - it's dimorphous with langite) on matrix.

Thanks to Thomas Bee's auction on eBay for the specimen!

maintained by: Alan Guisewite

Last Update 9 Mar 2010