Geology

Geology

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

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Geology > Minerals

taranakite

Geology; Minerals

Taranakite is a hydrated alkali iron-aluminium phosphate mineral with chemical formula (K,Na) 3 (Al,Fe 3+ ) 5 (PO 4 ) 2 (HPO 4 ) 6 ·18H 2 O. It forms from the reaction of clay ...

pyromorphite

Geology; Minerals

Pyromorphite is a mineral species composed of lead chlorophosphate: Pb 5 (PO 4 ) 3 Cl, sometimes occurring in sufficient abundance to be mined as an ore of lead. Crystals are ...

hsianghualite

Geology; Minerals

Hsianghualite is a tectosilicate (framework silicate) of lithium, calcium and beryllium, with fluorine, a member of the zeolite group. It was discovered in 1958 and named for the ...

cleusonite

Geology; Minerals

Cleusonite is a member of the crichtonite group of minerals with a chemical formula of (Pb,Sr)(U 4+ ,U 6+ )(Fe 2+ ,Zn)(Ti,Fe 2+ ,Fe 3+ ) 18 (O,OH) 38 . This group of minerals ...

amblygonite

Geology; Minerals

Amblygonite is a fluorophosphate mineral, (Li,Na)AlPO 4 (F,OH), composed of lithium, sodium, aluminium, phosphate, fluoride and hydroxide. The mineral occurs in pegmatite deposits ...

diaspore

Geology; Minerals

Diaspore is an aluminium oxide hydroxide mineral, α-AlO(OH), crystallizing in the orthorhombic system and isomorphous with goethite. It occurs sometimes as flattened crystals, but ...

autunite

Geology; Minerals

Autunite (hydrated calcium uranyl phosphate) with formula: Ca(UO 2 ) 2 (PO 4 ) 2 ·10-12H 2 O is a yellow - greenish fluorescent mineral with a hardness of 2 - 2½. Autunite ...