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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

Industry: Geology; Mining

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Minerals

parthéite

Geology; Minerals

Partheite or parthéite is a calcium aluminium silicate and a member of the zeolite group of minerals, a group of silicates with large open channels throughout the crystal structure, which allow ...

allophane

Geology; Minerals

Allophane is an amorphous to poorly crystalline hydrous aluminium silicate clay mineraloid. Its chemical formula is Al 2 O 3 ·(SiO 2 ) 1.3-2 ·(2.5-3)H 2 O. Since it has short-range atomic order, it ...

clarkeite

Geology; Minerals

Clarkeite is a uranium oxide mineral of composition (Na,Ca,Pb) 2 (UO 2 ) 2 (O,OH) 3 or (Na,Ca,Pb)(UO 2 )O(OH)·0-1H 2 O. Cinnabar is generally found in a massive, granular or earthy form and is ...

dollaseite-(Ce)

Geology; Minerals

Dollaseite-(Ce) is a sorosilicate end-member epidote mineral and was discovered by Gajer (1927) in the Ostanmossa mine, Norberg district, Sweden, the mineral wrongly named "magnesium orthite" after ...

anatase

Geology; Minerals

Anatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile. It is always found as small, isolated and sharply developed crystals, and like rutile, a more ...

dolomite

Geology; Minerals

Dolomite is a carbonate mineral composed of calcium magnesium carbonate CaMg(CO 3 ) 2 . The word dolomite is also used to describe the sedimentary carbonate rock, which is composed predominantly of ...

penikisite

Geology; Minerals

Penikisite was discovered by Alan Kulan and Gunar Penikis near Rapid Creek, Yukon Territory. The mineral is a member of the bjarebyite group along with kulanite, ideally BaFe 2+ 2 Al 2 (PO 4 ) 3 ...

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