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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
sacrofanite
Geology; Minerals
Sacrofanite is a rare silicate mineral that has the general formula of (Na,Ca) 9 (Si,Al) 12 O 24 (SO 4 ,CO 3 ,OH,Cl) 4 ·n(H 2 O). It was approved as a mineral by the International Mineralogical ...
seeligerite
Geology; Minerals
Seeligerite is a rare complex lead chlorate iodate mineral with formula: Pb 3 Cl 3 (IO 3 )O. It is a yellow mineral crystallizing in the orthorhombic system. It has perfect to good cleavage in two ...
anthophyllite
Geology; Minerals
Anthophyllite is an amphibole mineral: (Mg, Fe) 7 Si 8 O 22 (OH) 2 , magnesium iron inosilicate hydroxide. Anthophyllite is polymorphic with cummingtonite. Some forms of anthophyllite are lamellar or ...
cuprosklodowskite
Geology; Minerals
Cuprosklodowskite is a secondary uranium mineral formed by alteration of earlier uranium minerals. Its empirical formula is Cu(UO 2 ) 2 (HSiO 4 ) 2 ·6(H 2 O). Cuprosklodowskite is a nesosilicate ...
