1
Q
Hematite group
A
- corundum
- hematite
- ilmenite
2
Q
corundom
A
hexagonal; Al2O3
3
Q
hematite
A
haxagonal; Fe2O3
4
Q
ilmenite
A
hexagonal; FeTiO3
5
Q
Spinel group
A
- spinel
- gahnite
- magnetite
- galaxite
- franklinite
- chromite
- chrysoberyl
6
Q
spinel
A
isometric; MgAl2O4
7
Q
gahnite
A
isometric; ZnAl2O4
8
Q
magnetite
A
isometric; Fe2O4
9
Q
galaxite
A
isometric; MnAl2O4
10
Q
Franklinite
A
isometric; ZnFe2O4
11
Q
Chromite
A
isometric; FeCr204
12
Q
chrysoberyl
A
orthorhombic; BeAl2O4
13
Q
Rutile Group
A
- rutile
- pyrolusite
- cassiterite
- urarinite
14
Q
pyrolusite
A
tetragonal; MnO2
15
Q
rutile
A
tetragonal; TiO3
16
Q
Cassiterite
A
tetragonal; SnO2
17
Q
Urarinite
A
Isometric; UO2
18
Q
Protoxides group
A
- cuprite
- zincite
- periclase
19
Q
cuprite
A
isometric; Cu2O
20
Q
zincite
A
hexagonal; ZnO
21
Q
periclase
A
isometric; MgO
Mineral groups
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