Geology

Geology

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

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Geology > Minerals

arsenopyrite

Geology; Minerals

Arsenopyrite is an iron arsenic sulfide (FeAsS). It is a hard (Mohs 5.5-6) metallic, opaque, steel grey to silver white mineral with a relatively high specific gravity of 6.1. ...

fettelite

Geology; Minerals

Fettelite is a mercury-sulfosalt mineral with the chemical formula Ag 16 HgAs 4 S 15 . The mineral was first described by Wang and Paniagua (1996) who named it after M. Fettel, a ...

chaoite

Geology; Minerals

Chaoite or white carbon is a mineral described as an allotrope of carbon whose existence is disputed. It was discovered in shock-fused graphite gneiss from the Ries crater in ...

mimetite

Geology; Minerals

Mimetite, whose name derives from the Greek Μιμητής mimethes, meaning "imitator", is a lead arsenate chloride mineral (Pb 5 (AsO 4 ) 3 Cl) which forms as a secondary mineral in ...

pyroxferroite

Geology; Minerals

Pyroxferroite (Fe 2+ ,Ca)SiO 3 is a single chain inosilicate. It is mostly composed of iron, silicon and oxygen, with smaller fractions of calcium and several other metals. ...

scolecite

Geology; Minerals

Scolecite is a tectosilicate mineral belonging to the zeolite group; it is a hydrated calcium silicate, CaAl 2 Si 3 O 10 ·3H 2 O. Only minor amounts of sodium and traces of ...

pharmacosiderite

Geology; Minerals

Pharmacosiderite is a hydrated basic ferric arsenate, with chemical formula KFe 4 (AsO 4 ) 3 (OH) 4 ·(6-7)H 2 O and a molecular weight of 873.38 g/mol. It consists of the elements ...