Geology

Geology

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

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Geology > Minerals

boussingaultite

Geology; Minerals

Boussingaultite is a rare sulfate mineral of the chemical formula: (NH 4 ) 2 Mg(SO 4 ) 2 ·6(H 2 O). The formula of boussingaultite is that of Tutton's salts type. It was ...

kratochvílite

Geology; Minerals

Kratochvilite is a rare organic mineral formed by combustion of coal or pyritic black shale deposits. It is a hydrocarbon with the formula of either C 14 H 10 or (C 6 H 4 ) 2 CH ...

samsonite

Geology; Minerals

Samsonite is a silver manganese antimony sulfosalt mineral with formula Ag 4 MnSb 2 S 6 . It crystallizes in the monoclinic crystal system with a typical slender radiating ...

allanpringite

Geology; Minerals

Allanpringite is a phosphate mineral named after Australian mineralogist Allan Pring, South Australian Museum. Allanpringite is a Fe 3+ analogue Al-phosphate mineral wavellite, ...

kernite

Geology; Minerals

Kernite, also known as rasorite is a hydrated sodium borate hydroxide mineral with formula Na 2 B 4 O 6 (OH) 2 ·3(H 2 O). It is a colorless to white mineral crystallizing in the ...

birnessite

Geology; Minerals

Birnessite (Na 0.3 Ca 0.1 K 0.1 )(Mn 4+ ,Mn 3+ ) 2 O 4 · 1.5 H 2 O is an oxide mineral of manganese along with calcium, potassium and sodium. It has a dark brown to black color ...

safflorite

Geology; Minerals

Safflorite is a rare cobalt iron arsenide mineral with formula: (Co,Fe)As 2 . Pure safflorite would be just CoAs 2 , but iron is virtually always present. Safflorite is a member ...