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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

delafossite

Geology; Minerals

Delafossite is a copper iron oxide mineral with formula CuFeO 2 or Cu 1+ Fe 3+ O 2 . It is member of the delafossite mineral group with a general formula ABO 2 , a group characterized by a sheet of ...

triplite

Geology; Minerals

Triplite is a rare phosphate mineral with formula: (Mn,Fe) 2 PO 4 (F,OH). It occurs in phosphate-rich granitic pegmatites typically as irregular brown opaque masses. Triplite was first described in ...

sulfur

Geology; Minerals

Sulfur or sulphur (British English; see spelling below) is a chemical element with symbol S and atomic number 16. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form ...

tellurium

Geology; Minerals

Tellurium is a chemical element with symbol Te and atomic number 52. A brittle, mildly toxic, rare, silver-white metalloid which looks similar to tin, tellurium is chemically related to selenium and ...

tsumebite

Geology; Minerals

Tsumebite is a rare phosphate mineral named in 1912 after the locality where it was first found, the Tsumeb mine in Namibia, well known to mineral collectors for the wide range of minerals found ...

clinoptilolite

Geology; Minerals

Clinoptilolite is a natural zeolite comprising a microporous arrangement of silica and alumina tetrahedra. It has the complex formula: (Na,K,Ca) 2-3 Al 3 (Al,Si) 2 Si 13 O 36 ·12H 2 O. It forms as ...

schoepite

Geology; Minerals

Schoepite, empirical formula (UO 2 ) 8 O(OH) 12 •12(H 2 O) is a rare alteration product of uraninite in hydrothermal uranium deposits. It may also form directly from ianthinite. The mineral presents ...

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