diaphaneity
81Cassiterite — Infobox mineral name = Cassiterite category = boxwidth = boxbgcolor = imagesize = caption = Cassiterite crystals formula = SnO2 molweight = color = purple, wine, black, reddish brown or yellow habit = Pyramidic, prismatic system = tetragonal; 4/m …
82Stibnite — Infobox mineral name = Stibnite category = boxwidth = boxbgcolor = caption = Stibnite in the Carnegie Museum of Natural History formula = antimony sulfide (Sb2S3) molweight = color = Steel gray to dull gray. Black iridescent tarnish may be… …
83Zoisite — This article is about the mineral named zoisite. For the Sailor Moon character, see Shitennou. Infobox mineral name = Zoisite category = Silicate mineral boxwidth = boxbgcolor = caption = Anyolite (left) tanzanite formula =… …
84Thulite — Infobox mineral name = Thulite category = Mineral Variety boxwidth = boxbgcolor = caption = Thulite from Leksvik, Norway. formula = Ca2Al3(SiO4)(Si2O7)O(OH) color = Pink habit = Massive system = Orthorhombic twinning = cleavage = Perfect {010}… …
85Galena — Infobox mineral name = Galena category = Sulfides boxwidth = boxbgcolor = imagesize = 150 caption = Galena crystal from Galena, Kansas formula = lead sulfide (PbS) molweight = color = Lead gray, silvery habit = Cubes and octahedra, tabular and… …
86Chrysotile — Not to be confused with Chrysolite. Chrysotile Chrysotile serpentine from the Salt River area, Arizona General Category …
87Sodalite — Infobox mineral name = Sodalite category = boxwidth = boxbgcolor = caption = Sodalite of 7.5cm formula = Sodium aluminium silicate with chlorine (Na4Al3(SiO4)3Cl) color = Rich royal blue, green, yellow, violet, white veining common habit =… …
88Azurite — may also refer to a blue Green fluorescent protein derivative. For the DFPSO vessel, see Azurite DFPSO. Azurite Azurite from China with large crystals and light surface weathering. General …
89Astrophyllite — Infobox mineral name = Astrophyllite category = boxwidth = boxbgcolor = imagesize = caption = formula = (K,Na)3(Fe++,Mn)7 Ti2Si8O24(O,OH)7 molweight = color = Golden brown to yellow; rarely greenish habit = Tabular to bladed, radiating, stellate… …
90Periclase — General Category Oxide minerals Chemical formula MgO Strunz classification 04.AB.25 Crystal symmetry …
