Geology

Geology

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

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Geology > Minerals

manganvesuvianite

Geology; Minerals

Manganvesuvianite is a rare mineral with formula Ca 19 Mn 3+ (Al,Mn 3+ ,Fe 3+ ) 10 (Mg,Mn 2+ ) 2 (Si 2 O 7 ) 4 (SiO 4 ) 10 O(OH) 9 . The mineral is red to nearly black in color. ...

monohydrocalcite

Geology; Minerals

Monohydrocalcite is a mineral that is a hydrous form of calcium carbonate, CaCO 3 ·H 2 O. It was formerly also known by the name hydrocalcite, which is now discredited by the IMA. ...

sphalerite

Geology; Minerals

Sphalerite ((Zn,Fe)S) is a mineral that is the chief ore of zinc. It consists largely of zinc sulfide in crystalline form but almost always contains variable iron. When iron ...

sugilite

Geology; Minerals

Sugilite (also known as lavulite) is a relatively rare pink to purple cyclosilicate mineral with the complex chemical formula KNa 2 (Fe,Mn,Al) 2 Li 3 Si 12 O 30 . Sugilite ...

sapphirine

Geology; Minerals

Sapphirine is a rare mineral, a silicate of magnesium and aluminium with the chemical formula (Mg,Al) 8 (Al,Si) 6 O 20 (with iron as a major impurity). Named for its ...

bazzite

Geology; Minerals

Bazzite is a beryllium scandium cyclosilicate mineral with chemical formula: Be 3 Sc 2 Si 6 O 18 (Be 3 (Sc,Fe) 2 Si 6 O 18 or Be 3 (Sc,Al) 2 Si 6 O 18 ). It crystallizes in the ...

melilite

Geology; Minerals

Melilite refers to a mineral of the melilite group. Minerals of the group are solid solutions of several endmembers, the most important of which are gehlenite and åkermanite. A ...