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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
dumortierite
Geology; Minerals
Dumortierite is a fibrous variably colored aluminium boro-silicate mineral, Al 7 BO 3 (SiO 4 ) 3 O 3 . Dumortierite crystallizes in the orthorhombic system typically forming fibrous aggregates of ...
melanterite
Geology; Minerals
Melanterite is a mineral form of hydrous iron(II) sulfate: FeSO 4 ·7H 2 O. It is the iron analogue of the copper sulfate chalcanthite. It alters to siderotil by loss of water. It is a secondary ...
hydrokenoelsmoreite
Geology; Minerals
Hydrokenoelsmoreite is a hydrous tungsten oxide mineral with formula □ 2 W 2 O 6 (H 2 O). Hydrokenoelsmoreite is a colorless to white, translucent isometric mineral. It has a Mohs hardness of 3, ...
magnesiohastingsite
Geology; Minerals
Magnesiohastingsite is a calcium-containing amphibole and a member of the hornblende group. It is an inosilicate (chain silicate) with the formula NaCa 2 (Mg 4 Fe 3+ )Si 6 Al 2 O 22 (OH) 2 and molar ...
bischofite
Geology; Minerals
Bischofite (bishofit) is a hydrous magnesium chloride mineral with formula MgCl 2 ·6H 2 O. It belongs to halides and is a sea salt concentrate dated from the Permian Period (nearly 200 million years ...
