Geology

Geology

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

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Geology > Minerals

dumortierite

Geology; Minerals

Dumortierite is a fibrous variably colored aluminium boro-silicate mineral, Al 7 BO 3 (SiO 4 ) 3 O 3 . Dumortierite crystallizes in the orthorhombic system typically forming ...

melanterite

Geology; Minerals

Melanterite is a mineral form of hydrous iron(II) sulfate: FeSO 4 ·7H 2 O. It is the iron analogue of the copper sulfate chalcanthite. It alters to siderotil by loss of water. It ...

hydrokenoelsmoreite

Geology; Minerals

Hydrokenoelsmoreite is a hydrous tungsten oxide mineral with formula □ 2 W 2 O 6 (H 2 O). Hydrokenoelsmoreite is a colorless to white, translucent isometric mineral. It has a Mohs ...

magnesiohastingsite

Geology; Minerals

Magnesiohastingsite is a calcium-containing amphibole and a member of the hornblende group. It is an inosilicate (chain silicate) with the formula NaCa 2 (Mg 4 Fe 3+ )Si 6 Al 2 O ...

afghanite

Geology; Minerals

Afghanite, (Na,Ca,K) 8 (Al 6 Si 6 O 24 )(SO 4 ,Cl 2 ,CO 3 ) 3 · 0.5H 2 O, is a hydrous sodium, calcium, potassium, sulfate, chloride, carbonate alumino-silicate mineral. ...

agardite

Geology; Minerals

Agardite is a mineral group consisting of agardite-(Ce), agardite-(Nd), agardite-(La), and agardite-(Y). They comprise a group of minerals that are hydrous hydrated arsenates of ...

bischofite

Geology; Minerals

Bischofite (bishofit) is a hydrous magnesium chloride mineral with formula MgCl 2 ·6H 2 O. It belongs to halides and is a sea salt concentrate dated from the Permian Period ...