a massive impure form of uraninite• Varieties that are not valid species:• gem corundum of any color except red, especially blue varieties• Varieties that are not valid species:• | A chromian variety of Illite |
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light blue variety of beryl• Varieties that are not valid species:• Varieties that are not valid species:• red gem variety of beryl C Native• Varieties that are not valid species:• short for minerals of the columbite group• Varieties that are not valid species:• Varieties that are not valid species:• Iron oxide cemented soil or sediment G• Varieties that are not valid species:• synonym of smoky quartz N• a group of silicate minerals• tough, green mineral either jadeite or amphibole• variety of calcite M Muscovite• Varieties that are not valid species:• , a rock composed of feldspar, epidote and quartz• a group of closely-related minerals in the zeolite group• Varieties that are not valid species:• Varieties that are not valid species:• Varieties that are not valid species:• group name - asbestiform serpentine• variety of chrysoberyl D The slightly misshapen octahedral shape of this rough crystal in matrix is typical of the mineral | a group of silicate minerals• Varieties that are not valid species:• a group of silicate minerals• a variety of amber T Massive in matrix with quartz from , |
Varieties that are not valid species:• metamorphic rock - zoisite, ruby, and hornblende• Varieties that are not valid species:• Varieties that are not valid species:• gem variety of grossularite garnet U• a brown or black variety of quartz• Varieties that are not valid species:• fibrous serpentine- or amphibole minerals• a monochromatic banded variety of chalcedony• green gem variety of beryl.
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