Geology

Geology

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

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Geology > Minerals

pyrolusite

Geology; Minerals

Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO 2 ) and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a ...

nsutite

Geology; Minerals

Nsutite is a manganese oxide mineral with formula: (Mn 4+ 1-x Mn 2+ x O 2-2x (OH) 2x where x = 0.06-0.07). It is found in most large manganese deposits and was first discovered ...

sklodowskite

Geology; Minerals

Sklodowskite is a uranium mineral with the chemical formula: Mg(UO 2 ) 2 (HSiO 4 ) 2 ·5H 2 O. It is a secondary mineral which contains magnesium and is a bright yellow colour, its ...

cavansite

Geology; Minerals

Cavansite, whose name is derived from its chemical composition, calcium vanadium silicate, is a deep blue hydrous calcium vanadium phyllosilicate mineral, occurring as a secondary ...

howlite

Geology; Minerals

Howlite, a calcium borosilicate hydroxide (Ca 2 B 5 SiO 9 (OH) 5 ), is a borate mineral found in evaporite deposits. Howlite was discovered near Windsor, Nova Scotia in 1868 by ...

hauyne

Geology; Minerals

Hauyne, haüyne or hauynite was first described in 1807 from samples discovered in Vesuvian lavas in Monte Somma, Italy, and was named in 1807 by Brunn-Neergard for the French ...

iron(III) chloride

Geology; Minerals

Iron(III) chloride, also called ferric chloride, is an industrial scale commodity chemical compound, with the formula FeCl 3 . The colour of iron(III) chloride crystals depends on ...