diaphaneity
71Tanzanite — Infobox mineral name = Tanzanite category = Mineral Variety boxwidth = boxbgcolor = caption = Tanzanite gemstone, featuring an oval mixed cut formula = (Ca2Al3(SiO4)(Si2O7)O(OH)) color = Purple to Blue habit = Crystals flattened in an acicular… …
72Moissanite — General Category Mineral species Chemical formula SiC …
73Halite — For the market widely known as Halite , see Central Sofia Market Hall. Halite Halite from the Wieliczka salt mine, Małopolskie, Poland (size: 16x15x13cm) General Ca …
74Transparency (optics) — In optics, transparency (also called pellucidity) is the material property of allowing light to pass through. In mineralogy, another term for this property is diaphaneity. The opposite property is opacity. Transparent materials are clear: they… …
75Malachite — For other uses, see Malachite (disambiguation). Malachite Malachite from the Congo General Category Carbonate mineral …
76Augite — Infobox mineral name = Augite category = Silicate mineral boxwidth = boxbgcolor = imagesize = caption = formula = (Ca,Mg,Fe)SiO3 molweight = color = Pale brown to purplish or greenish brown, also dark grey sometimes habit = system = Monoclinic… …
77Carnotite — Infobox mineral name = Carnotite category = boxwidth = boxbgcolor = imagesize = 200 caption = formula = K2(UO2)2 (VO4)2·3H2O molweight = color = Yellow, Golden yellow, Greenish yellow habit = crusts, earthy masses, foliated and granular… …
78Wüstite — Infobox mineral name = Wüstite category = boxwidth = boxbgcolor = imagesize = caption = formula = FeO molweight = color = Greyish white to yellow or brown; colourless in thin section habit = Pyramidic, prismatic system = Cubic twinning = cleavage …
79Rhodochrosite — from Sweet Home Mine, Alma, Colorado, USA General Category Mineral species …
80Bornite — infobox mineral name = Bornite category = Sulfide mineral boxwidth = boxbgcolor = imagesize = caption = formula = Cu5FeS4 molweight = 342.681 color = Copper red, bronze brown, purple habit = Granular, massive, disseminated Crystals pseudocubic,… …
