copper
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ANUAN MULTI SERVICES
copper
Color |
Reddish-brown, green (due to oxidation) |
Luster |
Metallic, sub-metallic |
Hardness |
2.5 - 3 on Mohs scale |
Streak |
Copper-red when pure |
Specific Gravity |
2.7 - 8.9 (depending on type) |
Cleavage | None |
Fracture | Jagged, uneven |
Transparency | Opaque |
Crystal System |
Cubic (often massive) |
Associated Minerals |
Quartz, pyrite, calcite, iron oxides |