Mineral of the mica group
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BIOTITEMineral of the mica group
lepidoliteA mineral of the mica group containing lithium, typically gray or lilac in color
biotitevery common mineral of the mica group, occurring in black, dark-brown, or dark-green sheets and flakes: an important constituent of igneous and metamorphic rocks
biotitesvery common mineral of the mica group, occurring in black, dark-brown, or dark-green sheets and flakes: an important constituent of igneous and metamorphic rocks
EDENITEMineral of the amphibole group.
microclinea mineral of the feldspar group
pigeonitea monoclinic mineral of the pyroxene group
microclinesMICROCLINE, a mineral of the feldspar group
nacritea clay mineral of the kaolinite group
pigeonitesPIGEONITE, a monoclinic mineral of the pyroxene group
penninitea mineral of the chlorite group also PENNINE
ripidolitea translucent mineral of the chlorite group, aka clinochlore
penninitesPENNINITE, a mineral of the chlorite group also PENNINE
cummingtonitea mineral of the amphibole group, hydrated magnesium iron silicate
ripidolitesRIPIDOLITE, a translucent mineral of the chlorite group, aka clinochlore
phacolitea colorless variety of chabazite, a mineral of the zeolite group
cummingtonitesCUMMINGTONITE, a mineral of the amphibole group, hydrated magnesium iron silicate
gahnitedark-green to black mineral of the spinel group, zinc aluminate, ZnAl2O4
labradoriteA mineral of the plagioclase feldspar group, found in many igneous rocks
phacolitesPHACOLITE, a colorless variety of chabazite, a mineral of the zeolite group
grossularA mineral of the garnet group, consisting essentially of calcium aluminum silicate
gahnitesdark-green to black mineral of the spinel group, zinc aluminate, ZnAl2O4
enstatitea mineral of the pyroxene group, a silicate of magnesia with some iron
microclinea triclinic mineral of the feldspar group that is like orthoclase in composition
glauconiteA greenish clay mineral of the illite group, found chiefly in marine sands
forsteritea white, yellow, or green mineral of the olivine group consisting of magnesium silicate
montmorilloniteAn aluminum-rich clay mineral of the smectite group, containing some sodium and magnesium
enstatitesENSTATITE, a mineral of the pyroxene group, a silicate of magnesia with some iron
forsteritesFORSTERITE, a white, yellow, or green mineral of the olivine group consisting of magnesium silicate
hornblendedark-green to black mineral of the amphibole group, calcium magnesium iron and hydroxyl aluminosilicate
magnetitea black isometric mineral of the spinel group that is an oxide of iron and an important iron ore
andesinemineral, intermediate in the plagioclase feldspar group, having a play of colors and usually found as crystals in igneous rocks
jaditica usually green monoclinic mineral of the pyroxene group that is a silicate of sodium and aluminum and is a jade
jadeitea usually green monoclinic mineral of the pyroxene group that is a silicate of sodium and aluminum and is a jade
andraditeA mineral of the garnet group, containing calcium and iron. It occurs as yellow, green, brown, or black crystals, sometimes of gem quality
hydroxyapatiteA mineral of the apatite group that is the main inorganic constituent of tooth enamel and bone, although it is rare in rocks
hydroxylapatitea mineral of the apatite group that is rare in the ground but is the principal inorganic constituent of tooth enamel and bone
enstatiteA translucent crystalline mineral of varying colors that occurs in some igneous rocks and stony meteorites. It consists of magnesium silicate and is a member of the pyroxene group
hornblendesA dark brown, black, or green mineral of the amphibole group consisting of a hydroxyl alumino-silicate of calcium, magnesium, and iron, occurring in many igneous and metamorphic rocks