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Minerals
Naturally occurring substance that is solid and stable at room temperature, representable by a chemical formula, usually abiogenic, and has an ordered atomic structure. It is different from a rock, which can be an aggregate of minerals or non-minerals, and does not have a specific chemical composition. The general definition of a mineral encompasses the following criteria: 1 - Naturally occurring 2 - Stable at room temperature 3 - Represented by a chemical formula 4 - Usually abiogenic 5 - Ordered atomic arrangement
Contributors in Minerals
Minerals
kremersite
Geology; Minerals
Kremersite is a rare mineral which is a hydrated multiple chloride of iron, ammonium and potassium with the formula: (NH 4 ,K) 2 FeCl 5 ·H 2 O. Kremersite is a brown-red to orange mineral that ...
alluaivite
Geology; Minerals
Alluaivite is an exceedingly rare mineral of the eudialyte group, with complex formula written as Na 19 (Ca,Mn) 6 (Ti,Nb) 3 Si 26 O 74 Cl·2H 2 O. It is unique among the eudialyte group as the only ...
fukuchilite
Geology; Minerals
Fukuchilite, Cu 3 FeS 8 , is a copper iron sulfide named after the Japanese mineralogist Nobuyo Fukuchi (1877-1934), that occurs in ore bodies of gypsum-anhydrite at the intersection points of small ...
monticellite
Geology; Minerals
Monticellite and kirschsteinite are gray silicate minerals of the olivine group with compositions CaMgSiO 4 and CaFeSiO 4 , respectively. Most monticellites have the pure magnesium end-member ...
