| 67 Rows |
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 Amblygonite
A thumbnail of gemmy light-yellow amblygonite (lithium sodium aluminum fluorohydroxyphosphate) - this cuttable piece comes from Galiléia, Governador Valadares, Minas Gerais, Brazil. It forms two series; one with montebrasite, its hydroxyfluorophosphate analog, and one with natramblygonite where sodium predominates over lithium. Thanks to Robert Stoufer's auction on eBay for the specimen and the image! |
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 Anapaite
This miniature of anapaite (a calcium iron phosphate) on ironstone from Kertch (1988) on the Crimean Peninsula, Ukraine is a typical green iron mineral - what looks like needles are actually the top surfaces of vertically-oriented blades. It's named after Anapa, also in Russia and often occurs on fossil shells, which probably supplied the calcium. Thanks to Dave Hayward at Lucky Strike Minerals for the specimen and the image! |
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 Annabergite,
var. Caberiite
Annabergite (hydrated nickel arsenate) forms a complete series with erythrite. When there's more nickel than cobalt, green annabergite is formed - this thumbnail's from Laurion, Greece. Usually annabergite occurs as a dusty coating or fine tabular crystals; spheric aggregates like this are called "caberiite". Annabergite, or "nickel bloom", is used as a marker for nickel deposits. It's the arsenate analog of arupite. Thanks to Adam Larson at Adam's Mineralsfor the specimen! | |
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| Row 2 |
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 Annabergite,
var. Cabrerite
Bright green oriented tabular gemmy crystals of cabrerite (the crystalline variety of annabergite) comprise this thumbnail, also from Laurion. The larger image also shows (center, right) a beautiful white rosette with cabrerite "leaves"! Thanks to Mike Keim at Marin Minerals for the specimen and the images! | |
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 Apatite
Beautiful green apatites, calcium (fluoro, chloro, hydroxyl) phosphate, on a cluster of green muscovite from Lavra Aldeia do Eme, Brazil. The mineral is more correctly called flurorapatite, chloroapatite, or hydroxyapatite depending on which of the three cations predominate - because a precise chemical analysis is needed, the mineral is usually just named apatite. Thanks to Greg Holland at the Stone Haven Mineral Shoppe for the specimen and the image! | |
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| Row 3 |
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 Apatite on
Galena
This is a beautiful specimen of fluorapatite on galena from the Julcani Mine, Huancavelica Department, Peru. The bright fluorescence is also very interesting - zonal with light orange mid-crystal and light blue on the terminations! Thanks to IC Minerals for the specimen and the image! | |
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 Apatite
Apatite can be used as jewelry although its softness precludes any use other than earrings or necklaces. These are heavily fractured so they wouldn't be cut anyway (except for the one on the right - there's probably one or two carat's worth in that one). Because of its high phosphorus content, apatite is often ground up for fertilizer. These are from Mexico - I have a bunch of them; these are the best two. |
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 Apatite
A very pale violet apatite from the MacKenzie Mountains, near Tungsten, Northwest Territory, Canada. Thanks to Doug Miller at Northern Lights Minerals for the specimen! |
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| Row 4 |
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 Apatite
A beautiful one-inch long doubly-terminated blue apatite, probably from Brazil - the closeup shows one of the many blue internal reflections. Thanks to Chris Korpi at Pangaea Minerals for the specimen! |
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 Apatite
Another green apatite (twinned) on orange calcite from Monmouth Township, Wilberforce, Ontario, Canada. Thanks to Rory Howell's auction on eBay for the specimen and the image! |
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 Apatite
A beautiful green apatite on orange calcite with black hornblende from the Yates Mine, Otter Lake, Pontiac County, Quebec, Canada. Thanks to Veronica Matthews's auction on eBay for the specimen! |
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| Row 5 |
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 Apatite
This is a deep blue apatite from Ipira, Bahia, Brazil. Thanks to Greg Meyers' (Greg's Minerals) auction on eBay for the specimen and the image! |
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 Apatite
A section of a dark green apatite crystal from Lake Clear - Kuehl Lake area, Renfrew County, Ontario, Canada. Thanks to Allan Vesely's auction on eBay for the specimen! |
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 Apatite
A beautiful big teal apatite with two different habits (and colors) of calcite from Sludyanka, Baikal Lake, Russia. Thanks to Rick & Deana Seng's auction on eBay for the specimen and images! |
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| Row 6 |
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 Apatite
Deep blue granular apatite like this only occurs in two locations - Otter Creek, Quebec, Canada, and Fine, St. Lawrence County, New York. The white phosphorescence tells me it's the New York variety. The closeups show the brilliant blue translucence of this gorgeous specimen! Thanks to Douglas Davis' auction on eBay for the specimen! | |
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 Apatite
Massive, partially worked apatite from Brazil. The closeup shows one of the gemmy portions. |
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 Apatite
This nicely-terminated large miniature of red apatite is from the Yates Mine, Otter Lake, Huddersfield Township, Pontiac County, Québec, Canada. Thanks to Eric & Susan Youngman's Soul2Shine auction on eBay for the specimen! | |
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| Row 7 |
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 Apatite
Sometimes apatite has fibrous inclusions, like this cabinet catseye apatite from Bahia, Brazil. Thanks to Rob Kulakofsky at the Arizona Mineral Company for the specimen! | |
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 Apatite
A gorgeous pink apatite thumbnail from the 2002 find at the La Marina emerald mine, Borbur, Boyacá Department, Colombia. Thanks to Mike Keim at Marin Minerals for the specimen and the images! | |
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 Apatite
A pretty miniature of translucent blue-green apatite from Sludyanka, Baikal Lake, Russia. |
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| Row 8 |
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 Apatite on
Hydroxylherderite
Dozens of tiny double-terminated pale green apatites on a hydroxylherderite matrix comprise this beautiful miniature from Linópolis, Minas Gerais, Brazil. Thanks to Joanne Dionne's (The Mineral Mall) auction on eBay for the specimen! | |
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 Apatite
A gemmy light-yellow apatite thumbnail from the Cerro Mercado Mine, Durango, Mexico. Thanks to the North Star Minerals' table at the 2002 Carnegie Gem & Mineral Show for the specimen! |
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 Apatite
An old Canadian 9cm classic apatite from the John Byland collection. Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen and the image! |
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| Row 9 |
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 Apatite
The Harvard Mine located on Noyes Mountain in Greenwood, Oxford County, Maine is famous for its purple apatites. This thumbnail, collected in February 2004, is as deep a purple as apatites get! Thanks to James K. Andersen's auction on eBay for the specimen and the image! | |
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 Apatite
A large cabinet specimen of deep-blue apatite on matrix from Bahia, Brazil - the main crystal is 4.7 x 2.4 cm. Thanks to Lourenço Santos' auction on eBay for the specimen! |
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 Apatite
Rare colorless apatite crystal with gemmy epidote (larger image, top, right) on byssolite (miniature) from Knappenwand, Austria. Thanks to Mike Keim at Marin Minerals for the specimen and the images! | |
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| Row 10 |
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 Apatite
This beautiful, tiny, gemmy light-blue apatite crystal is from the Fall 2004 find near Le U Village, Mogok, Myanmar. Thanks to Mike Keim at Marin Minerals for the specimen and the images! | |
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 Apatite
Beautiful rare tiny red apatite crystals in a miniature quartz and spodumene matrix from the Foote Mine in Cleveland County, North Carolina. Thanks to David Notaro's auction on eBay for the specimen! | |
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 Apatite, var.
Asparagus Stone
This is the yellow-green variety of apatite known as asparagus stone - this beautiful miniature's from Durango, Mexico. As is often the case with photos, the real color is in between my pictures and Bill's. The apatite has the full complement of second-order prisms as well! Thanks to Bill Awald's auction on eBay for the specimen and the images! | |
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| Row 11 |
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 Apatite, var.
Manganapatite
At the other end of the purple intensity scale lies these beautiful pale lavender tabular apatites from Pakistan. This is the variety called manganapatite - the manganese makes these highly fluorescent (golden yellow) under longwave UV (larger image, bottom right). There are also tiny colorless (non-fluorescing) prismatic apatites (larger image, bottom left) scattered on the albite miniature matrix. Thanks to Tony Laurano's auction on eBay for the specimen! | | | |
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 Arrojadite
A high-contrast miniature of dark brownish-green arrojadite (a complex iron manganese fluorohydroxyphosphate) and pale beige collinsite crystals on matrix from the Big Fish River area, Yukon Territory,
Canada. Thanks to Anthony Jones' auction on eBay for the specimen! |
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 Arseniosiderite
This arseniosiderite (calcium iron oxyarsenate) thumbnail comes from Gold Hill, Tooele County, Utah. It forms an incomplete series with mitridatite (calcium iron oxyphosphate) and robertsite (calcium manganese oxyphosphate). Thanks to Adam Larson's (Adam's Minerals) auction on eBay for the specimen! |
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| Row 12 |
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 Augelite
A thumbnail of pale green augelite (an aluminum hydroxyphosphate) from Rapid Creek, Yukon, Canada. It's named from the Greek auge, brightness. Thanks to Doug Miller at Northern Lights Minerals for the specimen and the image! | |
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 Augelite
Another augelite from Rapid Creek - this large miniature has the typical association of lazulite and siderite. Thanks to Anthony Jones' auction on eBay for the specimen! |
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| Row 13 |
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 Barbosalite
An excellent miniature of deep-green barbosalite (ferrosoferric hydroxyphosphate) on quartz from the Bull Moose Mine, Custer County, South Dakota. It's the iron(II) analog of hentschelite Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen! |
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 Barnesite
A miniature of deep-red barnesite (a sodium calcium metavanadate trihydate) with red-brown metahewettite and dark-brown hewettite on matrix from the type locality of the Cactus Rat Mine, Yellow Cat District, Grand County, Utah. Thanks to Anthony Jones' auction on eBay for the specimen! | |
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 Bermanite
Bermanite's a fairly rare manganosomanganic hydroxyphosphate that occurs here as a transparent deep orange to deep red coating on matrix - one closeup (bottom left) shows a druse of tiny brownish-red crystals while another (bottom right) shows the intense color of the more massive deposit (just below center there's a bright orangey-brown internal flash). This high-quality (for the specie) specimen is from the El Criollo Mine, Cerro Blanco Pegmatites, Tanti, Córdoba, Argentina. Thanks to Eduardo Jawerbaum's auction on eBay for the specimen and the images! | |
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| Row 14 |
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 Beryllonite with
Apatite
These twinned frosty crystals of rare beryllonite (a sodium beryllium phosphate) have green apatites riding on them in this thumbnail from the Telírio Mine, Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil. Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen! |
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 Berzeliite
This small thumbnail of yellow berzeliite (a calcium sodium magnesium manganese arsenate) on bright orange-red phosphorescing calcite is from the type locality of the famous Långban Mine, Filipstad, Värmland, Sweden. The calcites from here are noted for their brilliance. Berzeliite forms a series with manganberzeliite and is named after the famous Swedish chemist, J. J. Berzelius. Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen and the image! |
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 Bjarebyite
Bluish-green bjarebyite (a barium iron manganese aluminum hydroxyphosphate) and other phosphates from the type locality of the Palermo #1 pegmatite, North Groton, New Hampshire. Thanks to Alexander Falster's auction on eBay for the specimen and the image! | |
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| Row 15 |
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 Bokite
Tiny black specks of bokite (an iron aluminum vanadate) on a thumbnail matrix from the Union Carbide Christy vanadium mine, Potash Sulfur
Springs, Garland County, Arkansas and is Ex: J. M. Howard Collection (1994). Thanks to Ben Clardy's auction on eBay for the specimen! |
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 Brandtite
on
Caryopilite
A busy miniature of white fibrous brandite (a hydrated calcium manganese magnesium arsenate) on a pinkish-tan caryopilite (a complex manganese zinc phyllosilicate) crystal fragment on an iron-manganese matrix from the famous Långban,Filipstad, Värmland, Sweden. There may also be some brownish-black caryinite (a complex manganese lead arsenate), (larger image, bottom right) for which Långban is the type locality. Brandtite is dimorphic with parabrandtite. Thanks to Anthony Jones' auction on eBay for the specimen! |
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 Bukovskyite
A large thumbnail of beige microclusters of bukovskyite (a hydrated iron hydroxysulfatoarsenate) from the type locality of Kank, Kutná Hora, Bohemia, Czech Republic. Thanks to Ingo Drescher's auction on eBay for the specimen! | |
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| Row 16 |
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 Cacoxenite
Beautiful tufts and stars of cacoxenite line the vugs and valleys of this miniature - unfortunately I don't have any location info for this one. Thanks to Bill Awald's auction on eBay for the specimen! |
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 Cacoxenite
An excellent miniature of bright yellow cacoxenite on matrix from Hot Springs, Arkansas. Thanks to Jonathan Levinger's auction on eBay for the specimen! | |
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| Row 17 |
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 Cafarsite
A sharp and shiny 7mm crystal of cafarsite (a hydrated calcium iron titanium manganese metarsenate) from the type locality of Wannigletscher, Wallis, Switzerland. Thanks to Alexander Falster's auction on eBay for the specimen! | |
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 Carbonate-fluoroapatite
var. Staffelite
The botryoidal habit of carbonate-fluoroapatite is often called staffelite after its type locality in Germany. This small cabinet piece comes from the Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Russia. Thanks to Mirek Dorejko's auction on eBay for the specimen and the images! |
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 Carbonate-hydroxylapatite
As mentioned in my first apatite entry above, most apatites are not analyzed - this small cabinet specimen of rare carbonate-hydroxylapatite was collected in 1987 from the 156' level of the North Shaft of the Palermo #1 Mine, Groton, Grafton County, New Hampshire by Eric Greene. Thanks to Eric Greene's (Treasure Mountain Mining) auction on eBay for the specimen and the images! |
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| Row 18 |
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 Ceruléite
Massive ceruléite in matrix from the type locality of the Emma Luisa Mine, Guanaco, Taltal, Chile, can be cabbed for jewelry - this copper aluminum hydroarsenate miniature is a beautiful distinctive blue. The larger image shows an unidentified bluish-green mineral in a small vug and a smaller ceruléite-filled "sandwich". Thanks to the House of Onyx for the specimens! | |
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 Chalcosiderite
Another member of the turquoise family, chalcosiderite (a hydrated iron copper hydroxyphosphate) occurs (as in this large thumbnail from the Wheal Phoenix, Cornwall, England) when iron replaces the aluminum. The color can vary from midnight blue (as here) to dark green. Thanks to Chris Korpi at Pangaea Minerals for the specimen! |
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| Row 19 |
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 Churchite
A nice miniature of white churchite (a hydrated yttrium erbium phosphate) tufts lining vugs in a limonitic gossan matrix from Auerbach, Oberpfalz, Bavaria, Germany. Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen and the image! |
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 Clinobisvanite
Clinobisvanite's a rare bismuth vanadate (hence the name) that occurs in yellow crusts - it's also a trimorph with dreyerite and pucherite (which also have different colors). The dark orange material here may be pucherite - there's also what appears to be barite (larger picture, bottom left) and a couple of dark brown cubes (larger picture, bottom right) with a red streak that I can't identify on the mica pegmatite. This cabinet specimen comes from La Juana Mine, between Yacanto and la Poblacion, San Javier Department, Cordoba Province, Argentina. Thanks to Chris Korpi at Pangaea Minerals for the specimen! |
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 Coeruleolactite
When calcium starts to replace the copper in turquoise, the color shifts to pure (light) blue and becomes coeruleolactite. This miniature's from Peru. Some references consider coeruleolactite to be a mixture of crandallite and cuprian planerite. Thanks to Wright's Rock Shop's table at the 2000 Carnegie Gem & Mineral Show for the specimen! |
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| Row 20 |
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 Collinsite
A rich coating of pale green collinsite (a calcium magnesium iron phosphate dihydrate) on a small cabinet matrix from the Rapid Creek area, Yukon, Canada. Collinsite is the magnesium-rich analog of manganese-rich fairfieldite. Thanks to Darrel Merke's (Proton Minerals) auction on eBay for the specimen and the images! |
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 Crandallite
Crandallite (calcium aluminum hydroxyphosphate) and othe related phosphates comprise the interior of this nodule from Clay Canyon, near Fairfield, Utah County, Utah. Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen! |
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 Cyrilovite
Yellow-brown cyrilovite (a hydrated iron sodium hydroxyphosphate) encrusts the iron ore matrix of this thumbnail from Hagendorf-Süd pegmatite, Waidhaus, Vohenstrauß, Oberpfalz, Bavaria, Germany. Thanks to Anthony Jones' auction on eBay for the specimen! |
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| Row 21 |
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 Delvauxite
Chalky tan delvauxite (a hydrated iron calcium hydroxysulfatophosphate) on a small cabinet matrix from the type locality of Berneau, Visé, Liege, Belgium. Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen and the image! | |
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 Diadochite
A small cabinet specimen of beige diadochite (a hydrated iron hydroxysulfatophosphate) on matrix from the co-type locality of Richelle, Visé, Liege, Belgium. It's the phosphate analog of sarmientite. This specimen has a destinezite label - destinezite should only apply to the crystalline variety of diadochite. Thanks to Alexander Falster's auction on eBay for the specimen! | |
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 Durangite
A durangite (sodium aluminum fluoarsenate) druse on a thumbnail matrix from the Thomas Range, Juab County, Utah. It forms two complete series; one with maxwellite, where iron replaces the aluminum, and one with tilasite, where calcium and magnesium replace the sodium and aluminum respectively. It also forms an incomplete series with lacroixite, its phosphate analog. Thanks to Walter Mroch's auction on eBay for the specimen and the image! |
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| Row 22 |
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 Dussertite
Dussertite's a barium iron hydroxyarsenate member of the crandallite group - this thumbnail is from the type locality of Djebel Debar, Hamman, Meskhootine, Constantine, Algeria via the French School of Mines. Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen! | |
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 Eosphorite
Very sharp crystals of orange eosphorite on a matrix of bladed muscovite from Taquaral, Minas Gerais, Brazil. Eosphorite is the manganese-rich end of the eosphorite - childrenite (iron-rich) series. Thanks to IC Minerals for the specimen and the image! | |
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 Eosphorite
A single crystal of eosphorite from Linópolis, Minas Gerais, Brazil. Thanks to Tom & Vicki Loomis at Dakota Matrix Minerals for the specimen and the image! |
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| Row 23 |
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 Erythrite
Very nice flat radiating clusters of erythrite (hydrated cobalt arsenate) from the Sara Alicia Mine, Mun. de Alamos, San Bernardo, Sonora, Mexico. Erythrite forms two complete series, one with annabergite and the other with hörnesite. Thanks to Dan Wienrich at Dan & Jill Weinrich for the specimen and the image! |
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 Erythrite
A nice thumbnail of erythrite on matrix from Bou Azzer, Morocco. The Moroccan erythrite crystals a much more prismatic (and gemmy) than the Mexican. Thanks to Graeber & Himes' table at the 2001 Carnegie Gem & Mineral Show for the specimen! |
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 Erythrite
A small cabinet piece of erythrie on cobaltite from Bou Azzer, Morocco. Thanks to Treasures of the Earth's table at the 2001 Carnegie Gem & Mineral Show for the specimen! |
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| Row 24 |
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 Erythrite
One more miniature erythrite from Morocco. Thanks to Ken DeMary's auction on eBay for the specimen! |
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 Erythrite,
Conichalcite,
and Smolianinovite
An unusual combination of arsenates (and colors) - rose erythrite, green conichalcite, and brown smolianinovite (a complex iron cobalt nickel arsenate) - on matrix from Mina Encontrada, Molvizar, Granada, Andalusia, Spain. Thanks to Jon Gladwell's (Myrddin Emrys Limited) auction on eBay for the specimen and images! | |
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 Fairfieldite
A cluster and a half of fairfieldite (a calcium manganese iron phosphate dihydrate) on holmquistite from Gaston County, North Carolina. I decreased the gamma on both pictures to improve the contrast. Fairfieldite's the manganese-rich analog of iron-rich messelite and of magnesium-rich collinsite. Thanks to Ken DeMary's auction on eBay for the specimen! |
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| Row 25 |
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 Fairfieldite
on
Carbonate-fluorapatite
An excellent miniature of white radial fairfieldite on a botryoidal layer of carbonate-fluorapatite from the LCA Mine, Bessemer City, Gaston County, North Carolina. Thanks to Dmitry Efremov's auction on eBay for the specimen and the image! |
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 Fermorite
Fermorite is a strontium calcium hydroxyphosphatoarsenate (a member of the apatite group) - this pink thumbnail comes from the type locality of Sitapur, Chindwara, India. It's named after L.L. Fermor of the Geological Survey of India. Thanks to Thomas Bee's auction on eBay for the specimen! | |
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 Fernandinite
on
Corvusite
The dark-green fernandinite (a hydrated calcium vanadate) fibers are almost impossible to see (in my poor photo) against the black corvusite (a hydrated sodium calcium potassium vanadate) matrix in this thumbnail from the type locality for corvusite, the Uravan District, Montrose County, Colorado. The larger image shows a second thumbnail. Ex: David Shannon collection (Aug 1990). Thanks to Anthony Jones' auction on eBay for the specimen! | |
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| Row 26 |
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 Ferrisicklerite
A cleavage fragment of ferrisicklerite from the Buzzos Mine, Center Strafford, Stafford County, New Hampshire. It forms a series with sicklerite (manganese-rich lithium phosphate; ferrisicklerite being the other, iron-rich member). Thanks to Chris Wong's auction on eBay for the specimen! |
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 Ferrostrunzite
An excellent miniature of ferrostrunzite on matrix from Blaton, Hainaut Province, Belgium. The specimen label says ferrostrunzite - according to the MinDat database, ferrostrunzite doesn't occur there. Ferristrunzite does, in fact, this is the type locality for ferristrunzite. Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen and the image! |
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 Fluellite
Here's an excellent thumbnail of bright white druse of fluellite, a hydrated aluminum hydroxyfluorophosphate, on matrix from the famous Willard Mine, Lovelock, Pershing County, Nevada. Thanks to Rick Kennedy's auction on eBay for the specimen and the image! |
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| Row 27 |
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 Forbesite
Considered by most authorities today to be a mixture of cobaltoan annabergite and arsenolite (or a variety of erythrite), this old Mexican (probably from Batopilas, Sonora) small cabinet specimen consists of fibrous-looking tabular off-white forbesite crystals (larger image, bottom right) on matrix. Dana describes forbesite as being derived from chloanthite (nickel arsenide) with a formula of (Co,Ni)2H(2AsO4)2·8H2O. Thanks to Bob Devine's auction on eBay for the specimen and the images! |
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 Gormanite
This is an excellent midnight-green drusy gormanite (a hydrated iron aluminum hydroxyphosphate) miniature from the type locality of the Rapid Creek area, Yukon, Canada. It forms a series with souzalite, where magnesium replaces some of the ferrous iron and ferric iron replaces some of the aluminum. Thanks to Vince Olsovsky's (KBV Fossils & Minerals) auction on eBay for the specimen! | |
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 Gormanite
A beautiful cluster of five gormanite needle clusters from Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil! Thanks to Ricky Houck's auction on eBay for the specimen and the images! | |
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| Row 28 |
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 Graftonite
A piece of massive graftonite (a manganese iron calcium phosphate, hence the color) - named for its type locality, Grafton County, New Hampshire. It's the calcium end member of a series with sarcopside (magnesium replacing the calcium) at the other end with beusite in the middle. |
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 Greifensteinite
on
Gormanite
Very rare light tan greifensteinite (a hydrated iron calcium manganese beryllium hydroxyphosphate) crystals on dark-green radiating gormanite comprise this miniature from Linópolis, Governador Valadares, Rio Doce, Minas Gerais, Brazil. Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen! |
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 Herderite
A thumbnail herderite (a calcium beryllium hydroxyfluophosphate) cluster with muscovite from Fazenda Jaime Pacheco, Linópolis, Governador Valadares, Rio Doce, Minas Gerais, Brazil. Thanks to Sharon Burnett's auction on eBay for the specimen! |
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| Row 29 |
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 Hummerite
This is a small thumbnail of bright orange hummerite, a hydrated potassium magnesium decavanadate, on sandstone from the type locality of the Hummer Mine, Montrose County, Colorado. Unfortunately, the hummerite is so loosely attached to the matrix that some of it's falling off. Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen! | |
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 Hummerite
A somewhat more stable miniature of hummerite on Morrison formation greenish-gray shale, again from the type locality of the Hummer Mine. This piece was probably collected in the 1950s - it has a Frazier's Minerals tag. Thanks to Robert Stoufer's auction on eBay for the specimen and the image! | |
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 Huréaulite
and
Jahnsite
This beautiful rosy pink huréaulite (a manganese hydroxyphosphate) comes from the Tip Top Mine near Custer, Custer County, South Dakota - there's also some brownish-yellow jahnsite (for which the Tiptop Mine is the type locality) on the predominately dark triphylite matrix. I didn't link jahnsite to the Mineralogy Database - there are 6 jahnsites, all variations on a calcium iron manganese magnesium hydroxyphosphate octahydrate. Thanks to Adam Larson's (Adam's Minerals) auction on eBay for the specimen! | |
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| Row 30 |
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 Huréaulite,
var. Bastinite
Bastinite's the common name given to huréaulite in which part of the manganese is replaced by lithium - this bastinite thumbnail comes from the type locality of Custer Mountain, Custer, South Dakota. Thanks to Don Goodell's auction on eBay for the specimen! | |
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 Kankite
Kankite (iron arsenite) occurs as yellow-green crystal masses on this miniature from the type locality, Kank, Kutná Hora, Stredocesky Kraj, Bohemia, Czech Republic. Thanks to Tony Nikischer at the Excalibur Mineral Company for the specimen! | |
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 Karibibite
Collected from the 2003 occurence in Larva de Urucum, Galilea Rio Dore, Minas Gerais, Brazil, this is a thumbnail of tiny orange karibibite (an iron hydroxyarsenite) radiating clusters on silvery massive lollingite. Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen! |
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| Row 31 |
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 Kidwellite
A pale yellow-green crust of kidwellite (a sodium iron hydroxyphosphate) on matrix from the classic location of Polk County, Arkansas - as is typical, there are other phosphates here, namely rockbridgeite (closeups) and strunzite. Thanks to Anne & Charles Steuart's auction on eBay for the specimen! | |
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 Kingsmountite
An excellent miniature of white and tan kingsmountite (a hydrated calcium aluminum manganese iron magnesium hydroxyphosphate) on matrix from Huhnerkobel Mountain, Rabenstein, Zwiesel, Bavaria, Germany. There are many other phosphates present (larger image, bottom row) as these phosphates are caused by oxidizing ground water surface reactions. Thanks to Martin Gale's auction on eBay for the specimen and the images! |
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 Kosnarite
A thumbnail of kosnarite (zirconium potassium phosphate) crystals on an albite matrix from the recent find in the Jenipapo district, Itinga, Minas Gerais, Brazil. Thanks to Steve & Susan Bringe's (Summit Minerals) auction on eBay for the specimen! |
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| Row 32 |
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 Kovdorskite
A thumbnail pair of kovdorskite (a hydrated magnesium carbonatohydroxyphosphate) crystals from the type locality of the Kovdor iron-ore deposit, Kola Peninsula, Russia. Thanks to Mike Keim at Marin Minerals for the specimen and the images! | |
|
 Kulanite
Nice crystals of kulanite (a rare barium iron aluminum hydroxyphosphate) with siderite from the type locality of Rapid Creek, Yukon, Canada. It forms a series with penikisite where magnesium replaces the iron. Thanks to Doug Miller at Northern Lights Minerals for the specimen and the image! | |
|
 Laubmannite
Laubmannite's a mineral that no longer exists! When discovered in 1949 by Clifford Frondel, it was thought to be a ferrosoferric hydroxyphosphate. After more modern analyses were done in 1990, it was found to be a variable mixture of other iron-containing phosphates, primarily beraunite, dufrenite, and kidwellite. This specimen comes from the type locality of the Coon Creek Mine (York Mine) Shady, Polk County, Arkansas. Thanks to Robert Stoufer's auction on eBay for the specimen and images! | |
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| Row 33 |
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 Lazulite
Very nice deep blue lazulite (a magnesium aluminum phosphate) crystals with quartz needles and siderite crystals from the famous Rapid Creek, Yukon Territory, Canada. Thanks to Chris Korpi at Pangaea Minerals for the specimen! | |
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 Lazulite
More lazulite - this one, along with blue kyanite blades and tiny pyrite cubes in quartzite, is from the classic locale of Graves Mountain, Lincoln County, Georgia. Thanks to Drexel Pitts's auction on eBay for the specimen! |
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 Lazulite
Lazulite in translucent quartzite, again, from the rapidly depleting site at Graves Mountain, Georgia. Thanks to Joe Vincent's auction on eBay for the specimen! |
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