Geology

Geology

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

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Geology > Minerals

pezzottaite

Geology; Minerals

Pezzottaite, marketed under the name raspberyl or raspberry beryl, is a newly identified mineral species, first recognized by the International Mineralogical Association in ...

digenite

Geology; Minerals

Digenite is a copper sulfide mineral with formula: Cu 9 S 5 . Digenite is a black to dark blue opaque mineral that crystallizes with a trigonal - hexagonal scalenohedral ...

stibarsen

Geology; Minerals

Stibarsen or allemontite is a natural form of arsenic antimonide (AsSb) or antimony arsenide (SbAs). The name stibarsen is derived from Latin stibium (antimony) and arsenic, ...

huttonite

Geology; Minerals

Huttonite is a thorium nesosilicate mineral with the chemical formula ThSiO 4 and which crystallizes in the monoclinic system. It is dimorphous with tetragonal thorite, and ...

powellite

Geology; Minerals

Powellite is a calcium molybdate mineral with formula CaMoO 4 . Powellite crystallizes with tetragonal - dipyramidal crystal structure as transparent adamantine blue, greenish ...

nontronite

Geology; Minerals

Nontronite is the iron(III) rich member of the smectite group of clay minerals. Nontronites typically have a chemical composition consisting of more than ~30% Fe 2 O 3 and less ...

manganese(II) chloride

Geology; Minerals

Manganese(II) chloride describes a series of compounds with the formula MnCl 2 (H 2 O) x , where the value of x can be 0, 2, or 4. The tetrahydrate is the most common form of ...