10 Terms
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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
tetrahedrite
Geology; Minerals
Tetrahedrite is a copper antimony sulfosalt mineral with formula: (Cu,Fe) 12 Sb 4 S 13 . It is the antimony endmember of the continuous solid solution series with arsenic bearing tennantite. Pure ...
kutnohorite
Geology; Minerals
Kutnohorite is a rare calcium manganese carbonate mineral with magnesium and iron, that is a member of the dolomite group. It forms a series with dolomite, and with ankerite. The end member formula ...
thorianite
Geology; Minerals
Thorianite is a rare thorium oxide mineral, ThO 2 . It was originally described by Ananda Coomaraswamy in 1904 as uraninite, but recognized as a new species by Wyndham R. Dunstan. It was so named on ...
clearcreekite
Geology; Minerals
Clearcreekite is a polymorph of peterbaylissite. The chemical formula of clearcreekite is Hg 1+ 3 CO 3 (OH)·2H 2 O. It has a pale greenish yellow color and streak with tabular subhedral crystals and ...
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