Geology

Geology

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

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Geology > 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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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. ...