Geology

Geology

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

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Geology > Minerals

uraninite

Geology; Minerals

Uraninite is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO 2 , but also contains UO 3 and oxides of lead, thorium, and rare earth ...

cupalite

Geology; Minerals

Cupalite is a rare mineral which is mostly composed of copper and aluminium, but might contain up to several percent of zinc or iron; its chemical structure is therefore described ...

duftite

Geology; Minerals

Duftite is a relatively common arsenate mineral with the formula CuPb(AsO 4 )(OH), related to conichalcite. It is green and often forms botryoidal aggregates. It is a member of ...

hausmannite

Geology; Minerals

Hausmannite is a complex oxide of manganese containing both di- and tri-valent manganese. The formula can be represented as Mn 2+ Mn 3+ 2 O 4 . It belongs to the spinel group and ...

rhodonite

Geology; Minerals

Rhodonite is a manganese inosilicate, (Mn, Fe, Mg, Ca)SiO 3 and member of the pyroxenoid group of minerals, crystallizing in the triclinic system. It commonly occurs as cleavable ...

hemusite

Geology; Minerals

Hemusite is a very rare isometric gray mineral containing copper, molybdenum, sulfur, and tin with chemical formula Cu 6 SnMoS 8 . It was discovered by Bulgarian mineralogist ...

khatyrkite

Geology; Minerals

Khatyrkite is a rare mineral which is mostly composed of copper and aluminium, but might contain up to about 15% of zinc or iron; its chemical structure is described by an ...