Geology

Geology

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

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Geology > Minerals

almandine

Geology; Minerals

Almandine, also known incorrectly as almandite, is a species of mineral belonging to the garnet group. The name is a corruption of alabandicus, which is the name applied by Pliny ...

ferrierite

Geology; Minerals

The ferrierite group of zeolite minerals (the FER structure) consists of three very similar species: ferrierite-Mg, ferrierite-Na, and ferrierite-K, based on the dominant cation ...

thorite

Geology; Minerals

Thorite, (Th,U)SiO 4 , is a rare nesosilicate of thorium that crystallizes in the tetragonal system and is isomorphous with zircon and hafnon. It is the most common mineral of ...

hibonite

Geology; Minerals

Hibonite ((Ca,Ce)(Al,Ti,Mg) 12 O 19 ) is a brownish black mineral with a hardness of 7.5-8.0 and a hexagonal crystal structure. It is rare, but is found in high-grade metamorphic ...

kermesite

Geology; Minerals

Kermesite or antimony oxysulfide is also known as red antimony (Sb 2 S 2 O) . The mineral's color ranges from cherry red to a dark red to a black. Kermesite is the result of ...

bustamite

Geology; Minerals

Bustamite is a calcium manganese inosilicate (chain silicate) and a member of the wollastonite group. Magnesium, zinc and iron are common impurities substituting for manganese. It ...

microlite

Geology; Minerals

Microlite is a pale-yellow, reddish-brown, or black isometric mineral composed of sodium calcium tantalum oxide with a small amount of fluorine (Na,Ca) 2 Ta 2 O 6 (O,OH,F). ...