Geology

Geology

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

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Geology > Minerals

switzerite

Geology; Minerals

Switzerite is a mineral with the chemical formula of (Mn) 3 (PO 4 ) 2 ·7H 2 O. The mineral was named after George Switzer, former Curator of Minerals at the US National Museum. ...

mixite

Geology; Minerals

Mixite is a rare copper bismuth arsenate mineral with formula: BiCu 6 (AsO 4 ) 3 (OH) 6 ·3(H 2 O). It crystallizes in the hexagonal crystal system typically occurring as radiating ...

polyhalite

Geology; Minerals

Polyhalite is an evaporite mineral, a hydrated sulfate of potassium, calcium and magnesium with formula: K 2 Ca 2 Mg(SO 4 ) 4 ·2H 2 O. Polyhalite crystallizes in the triclinic ...

silicon nitride

Geology; Minerals

Silicon nitride is a chemical compound of the elements silicon and nitrogen, with the formula Si 3N 4. It is a white, high-melting-point solid that is relatively chemically inert, ...

zeolite

Geology; Minerals

Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents. The term zeolite was originally coined in 1756 by Swedish mineralogist Axel Fredrik ...

hemimorphite

Geology; Minerals

Hemimorphite, is a sorosilicate mineral which has been mined from days of old from the upper parts of zinc and lead ores, chiefly associated with smithsonite. It was often assumed ...

tschermakite

Geology; Minerals

The endmember hornblende tschermakite (Ca 2 (Mg,Fe 2+ ) 3 Al 2 (Si 6 Al 2 )O 22 (OH) 2 ) is a calcium rich monoclinic amphibole mineral. It is frequently synthesized along with ...