Geology

Geology

The scientific study of the origin, history, and physical features of the earth.

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Geology > Minerals

bityite

Geology; Minerals

Bityite is considered a rare mineral, and it is an endmember to the margarite mica sub-group found within the phyllosilicate group. The mineral was first described by Antoine ...

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 ...

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 ...

columbite

Geology; Minerals

Columbite, also called niobite, niobite-tantalite and columbate ((Fe, Mn)Nb 2 O 6 ), is a black mineral group that is an ore of niobium. It has a submetallic luster and a high ...

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. ...

silicon

Geology; Minerals

Silicon, a tetravalent metalloid, is a chemical element with the symbol Si and atomic number 14. It is less reactive than its chemical analog carbon, the nonmetal directly above ...

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 ...