Geology

Geology

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

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Geology > Minerals

palygorskite

Geology; Minerals

Palygorskite or attapulgite is a magnesium aluminium phyllosilicate with formula (Mg,Al) 2 Si 4 O 10 (OH)·4(H 2 O) that occurs in a type of clay soil common to the Southeastern ...

paramelaconite

Geology; Minerals

Paramelaconite is a rare, black-colored copper oxide mineral with formula Cu 2 1+ Cu 2 2+ O 3 (or Cu 4 O 3 ). It was discovered in the Copper Queen Mine in Bisbee, Arizona, ...

scheelite

Geology; Minerals

Scheelite is a calcium tungstate mineral with the chemical formula CaWO 4 . It is an important ore of tungsten. Well-formed crystals are sought by collectors and are occasionally ...

tyrolite

Geology; Minerals

Tyrolite is a hydrated calcium copper arsenate carbonate mineral with formula: CaCu 5 (AsO 4 ) 2 CO 3 (OH) 4 ·6H 2 O. Tyrolite forms glassy blue to green orthorhombic radial ...

spodumene

Geology; Minerals

Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate, LiAl(SiO 3 ) 2 , and is a source of lithium. It occurs as colorless to yellowish, purplish, or lilac ...

beryl

Geology; Minerals

In geology, beryl is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be 3 Al 2 (SiO 3 ) 6 . The hexagonal crystals of beryl may be very small or ...

diadochite

Geology; Minerals

Diadochite is a phospho-sulfate mineral. It is a secondary mineral formed by the weathering and hydration of other minerals. Its formula is Fe 2 (PO 4 )(SO 4 )OH·5H 2 O. Well ...