abraxas		a magical name which in antiquity was often engraved on a gem as a charm.
morion		a dark variety of smoky quartz.
padparadschah		a synthetic orange sapphire.
Venus hairstone		a quartz crystal containing acicular rutile.
prase		a leek-green cryptocrystalline chalcedony.
balas		a rose-red species of spinel.
schorl		black tourmaline.
carbonado		to score and broil; a piece of meat so cooked.
ustulate		scorched, blackened.
carbonado		a Brazilian variety of black diamond.
girasol		an opal; a Jerusalem artichoke. adjectivally, opalescent blue-white, with reddish reflections. [
adularescent		(of gemstones, esp. |adularia|, an opalescent orthoclase) having a cloudy, bluish luster.
smaragd		an emerald. (adj. "smaragdine")
pyrope		a type of garnet, used as a gem. [< Gk /pyro~po's/ fire-eyed]
macle		(crystallography, obs.) a twin.