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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

beryllonite

Geology; Minerals

Beryllonite is a rare sodium beryllium phosphate mineral with formula NaBePO 4 . The tabular to prismatic monoclinic crystals vary from colorless to white or pale yellowish, and are transparent with ...

manganite

Geology; Minerals

Manganite is a mineral. Its composition is manganese oxide-hydroxide, MnO(OH), crystallizing in the monoclinic system (pseudo-orthorhombic). Crystals of manganite are prismatic and deeply striated ...

crocoite

Geology; Minerals

Crocoite is a mineral consisting of lead chromate, PbCrO 4 , and crystallizing in the monoclinic crystal system. It is identical in composition with the artificial product chrome yellow used as a ...

bararite

Geology; Minerals

Bararite is a natural form of ammonium fluorosilicate (also known as hexafluorosilicate or fluosilicate). It has chemical formula (NH 4 ) 2 SiF 6 and trigonal crystal structure. This mineral was ...

talnakhite

Geology; Minerals

Talnakhite is a mineral of chalcopyrite group with formula: Cu 9 (Fe, Ni) 8 S 16 . It was named after the Talnakh ore deposit, near Norilsk in Western Siberia, Russia where it was discovered as ...

pecoraite

Geology; Minerals

Pecoraite is a Nickel silicate mineral and a member of the serpentine group. It is monoclinic and has a chemical composition of Ni 3 (Si 2 O 5 )(OH) 4 It is associated with the weathering-and-or ...

tranquillityite

Geology; Minerals

Tranquillityite is silicate mineral with formula (Fe 2+ ) 8 Ti 3 Zr 2 Si 3 O 24 . It is mostly composed of iron, oxygen, silicon, zirconium and titanium with smaller fractions of yttrium and ...

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