Geology

Geology

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

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Geology > Minerals

parthéite

Geology; Minerals

Partheite or parthéite is a calcium aluminium silicate and a member of the zeolite group of minerals, a group of silicates with large open channels throughout the crystal ...

allophane

Geology; Minerals

Allophane is an amorphous to poorly crystalline hydrous aluminium silicate clay mineraloid. Its chemical formula is Al 2 O 3 ·(SiO 2 ) 1.3-2 ·(2.5-3)H 2 O. Since it has ...

clarkeite

Geology; Minerals

Clarkeite is a uranium oxide mineral of composition (Na,Ca,Pb) 2 (UO 2 ) 2 (O,OH) 3 or (Na,Ca,Pb)(UO 2 )O(OH)·0-1H 2 O. Cinnabar is generally found in a massive, granular or ...

dollaseite-(Ce)

Geology; Minerals

Dollaseite-(Ce) is a sorosilicate end-member epidote mineral and was discovered by Gajer (1927) in the Ostanmossa mine, Norberg district, Sweden, the mineral wrongly named ...

anatase

Geology; Minerals

Anatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile. It is always found as small, isolated and sharply developed crystals, and ...

dolomite

Geology; Minerals

Dolomite is a carbonate mineral composed of calcium magnesium carbonate CaMg(CO 3 ) 2 . The word dolomite is also used to describe the sedimentary carbonate rock, which is ...

penikisite

Geology; Minerals

Penikisite was discovered by Alan Kulan and Gunar Penikis near Rapid Creek, Yukon Territory. The mineral is a member of the bjarebyite group along with kulanite, ideally BaFe 2+ ...