Geology

Geology

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

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Geology > Minerals

fluor-liddicoatite

Geology; Minerals

Fluor-liddicoatite is a rare member of the tourmaline group of minerals, elbaite subgroup, and the theoretical calcium endmember of the elbaite-fluor-liddicoatite series; the pure ...

kobellite

Geology; Minerals

Kobellite (Pb 22 Cu 4 (Bi,Sb) 30 S 69 ) is a gray, fibrous, metallic mineral, a sulfide of antimony, bismuth, and lead. It is a member of the izoklakeite - berryite series with ...

stellerite

Geology; Minerals

Stellerite has a general formula of Ca(Al 2 Si 7 O 18 )·7H 2 O. It is named after Georg Wilhelm Steller (1709-1746) who was a German explorer and zoologist that discovered it. ...

tennantite

Geology; Minerals

Tennantite is a copper arsenic sulfosalt mineral. Its chemical formula is Cu 12 As 4 S 13 . It is grey-black, steel-gray, iron-gray or black in color. A closely related mineral, ...

marialite

Geology; Minerals

Marialite is a silicate mineral with a chemical composition of Na 4 Al 3 Si 9 O 24 Cl if a pure endmember or Na 4 (AlSi 3 O 8 ) 3 (Cl 2 ,CO 3 ,SO 4 ) with increasing meionite ...

chondrodite

Geology; Minerals

Chondrodite is a nesosilicate mineral with formula (Mg,Fe) 5 (SiO 4 ) 2 (F,OH,O) 2 . Although it is a fairly rare mineral, it is the most frequently encountered member of the ...

tremolite

Geology; Minerals

Tremolite is a member of the amphibole group of silicate minerals with composition: Ca 2 Mg 5 Si 8 O 22 (OH) 2 . Tremolite forms by metamorphism of sediments rich in dolomite and ...