Geology

Geology

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

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Geology > Minerals

akhtenskite

Geology; Minerals

Akhtenskite (Manganese Smoker ) is a mineral with the chemical formula of MnO 2 that was named after the Akhtensk deposit. The deposit can be found in Russia, where it was first ...

miargyrite

Geology; Minerals

Miargyrite is a mineral, a sulfide of silver and antimony with the formula AgSbS 2 . It is a dimorph of cuboargyrite. Originally discovered in the Freiberg district of Germany in ...

baotite

Geology; Minerals

Baotite Ba 4 Ti 4 (Ti, Nb, Fe) 4 (Si 4 O 12 )O 16 Cl is a rare mineral recognized as having a unique four-fold silicate ring. Crystals are tetragonal, though commonly deformed to ...

schwertmannite

Geology; Minerals

Schwertmannite is an iron-oxyhydroxysulfate mineral with an ideal chemical formula of Fe 8 O 8 (OH) 6 (SO 4 )·nH 2 O or Fe 3+ 16 O 16 (OH,SO 4 ) 12-13 ·10-12H 2 O. It is an ...

alunogen

Geology; Minerals

Alunogen also called feather alum and hair salt is a colourless to white (although often coloured by impurities, such as iron substituting for aluminium) fibrous to needle-like ...

bayldonite

Geology; Minerals

Bayldonite (BAIL-done-ite) is a rare secondary mineral with the chemical formula PbCu 3 (AsO 4 ) 2 (OH) 2 . It was first discovered in Penberthy Croft Mine, Cornwall, England, ...

bílinite

Geology; Minerals

Bílinite (Fe 2+ Fe 2 3+ (SO 4 )·22H 2 O) is an iron sulfate mineral. It is a product of the oxidation of pyrite in water. It is an acidic mineral that has a pH of less than 3 and ...