Chatkalite | |
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General | |
Category | Sulfide mineral |
Formula (repeating unit) | Cu6Fe2+Sn2S8 |
IMA symbol | Ctk[1] |
Strunz classification | 2.CB.20 |
Crystal system | Tetragonal |
Crystal class | Scalenohedral (42m) H-M symbol: (4 2m) |
Space group | P4m2 |
Unit cell | a = 7.61(1) Å, c = 5.373(5) Å; Z = 1 |
Identification | |
Color | Rose to brown orange; Pale rose in reflected light |
Crystal habit | Rounded grains, to 100 μm within tetrahedrite |
Mohs scale hardness | 4.5 |
Diaphaneity | Opaque |
Specific gravity | 5.00 (calculated) |
References | [2][3][4][5] |
Chatkalite is a copper, iron, tin sulfide mineral with formula Cu6Fe2+Sn2S8. It crystallizes in the tetragonal crystal system and forms as rounded disseminations within tetrahedrite in quartz veins.