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Minerals

Naturally occurring substance that is solid and stable at room temperature, representable by a chemical formula, usually abiogenic, and has an ordered atomic structure. It is different from a rock, which can be an aggregate of minerals or non-minerals, and does not have a specific chemical composition. The general definition of a mineral encompasses the following criteria: 1 - Naturally occurring 2 - Stable at room temperature 3 - Represented by a chemical formula 4 - Usually abiogenic 5 - Ordered atomic arrangement

Contributors in Minerals

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 the Elder to a stone ...

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 in the A location. ...

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 thorium and is nearly ...

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 rocks on Madagascar. ...

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 partial oxidation between ...

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 is a polymorph of ...

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). Microlite is a mineral in ...

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