Geology Reference
In-Depth Information
Table 2.2 Classification of ore minerals
Sulfides and sulfosalts
Covellite - CuS
Chalcocite - Cu
2
S
Chalcopyrite - CuFeS
2
Oxysalts
Bornite - Cu
8
FeS
4
Calcite - CaCO
3
Tetrahedrite - (Cu, Ag)
12
Sb
4
S
13
Rhodochrosite - MnCO
3
Galena - PbS
Smithsonite - ZnCO
3
Sphalerite - (Zn,Fe)S
Malachite - Cu
2
(OH)
2
CO
3
Cinnabar - HgS
Barite - BaSO
4
Cobaltite - (Co, Fe)AsS
Gypsum - CaSO
4
.2H
2
O
Molybdenite: -MoS
2
Scheelite - CaWO
4
Pentlandite: (Fe, Ni)
9
S
8
Wolframite - (Fe, Mn)WO
4
Millerite - NiS
Apatite - Ca
8
(PO
4
)
3
(F,Cl, OH)
Realgar - AsS
Stibnite - Sb
2
S
3
Halides
Sperrylite - PtAs
2
Halite - NaCl
Laurite - RuS
2
Sylvite - KCl
Fluorite - CaF
2
Oxides and hydroxides
Bauxite
Metals and native elements
Gibbsite - Al(OH)
3
Gold - Au
Boehmite - (
g
-AlO(OH))
Silver - Ag
Diaspore - (
a
-AlO(OH))
Platinum-group metals - Pt, Pd, Ru
Cassiterite - SnO
2
Copper - Cu
Cuprite - Cu
2
O
Carbon - C (diamond, graphite)
Chromite - (Fe, Mg)Cr
2
O
4
Columbite -tantalite or coltan
- (Fe, Mn)(Nb, Ta)
2
O
6
Silicates
Beryl - Be
3
Al
2
(SiO
3
)
6
Hematite - Fe
2
O
3
Garnet - Fe
3
Al
2
(SiO
4
)
3
Ilmenite - FeTiO
3
Garnierite - mixture of the Ni-Mg-hydrosilicates
Magnetite - Fe
3
O
4
Kaolinite - Al
4
Si
4
O
8
(OH)
8
Pyrolusite -MnO
2
Sillimanite - Al
2
SiO
8
Rutile - TiO
2
Spodumene - LiAlSi
2
O
6
Uraninite (pitchblende) - UO
2
Talc - Mg
3
Si
4
O
8
(OH)
2
Zircon - ZrSiO
4
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