Geology

Geology

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

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Geology > Minerals

silver(I) selenide

Geology; Minerals

Silver selenide (Ag 2 Se) is a clear, hexagonal compound. It is the reaction product formed when selenium toning analog silver gelatine photo papers in photographic print toning. ...

magnetite

Geology; Minerals

Magnetite is a mineral, one of the two common naturally occurring iron oxides (chemical formula Fe 3 O 4 ) and a member of the spinel group. Magnetite is the most magnetic of all ...

nissonite

Geology; Minerals

Nissonite is a very rare copper phosphate mineral with formula: Cu 2 Mg 2 (PO 4 ) 2 (OH) 2 ·5H 2 O. It crystallizes in the monoclinic crystal system typically as crusts, tabular ...

parsonsite

Geology; Minerals

Parsonsite is a lead uranium phosphate mineral with chemical formula: Pb 2 (UO 2 )(PO 4 ) 2 ·2H 2 O. Parsonsite contains about 45% lead and 25% uranium. It forms elongated ...

phosphophyllite

Geology; Minerals

Phosphophyllite is a rare mineral composed of hydrated zinc phosphate. Its name derives from its chemical composition (phosphate) and the Greek word for "leaf", phyllon, a ...

zinc chloride hydroxide monohydrate

Geology; Minerals

Zinc chloride hydroxide monohydrate is a zinc hydroxy compound with chemical formula Zn 5 (OH) 8 Cl 2 ·H 2 O. It is often referred to as tetrabasic zinc chloride (TBZC), basic ...

celsian

Geology; Minerals

Celsian is an uncommon feldspar mineral, barium aluminosilicate, BaAl 2 Si 2 O 8 . The mineral occurs in contact metamorphic rocks with significant barium content. Its crystal ...