Asked by hop out luh robert
what is the chemical formula, color, mineral group, streak, hardness, luster, specific gravity of cleavage, transparency, fracture of the copper mineral
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Assuming you mean the native copper mineral (elemental copper):
- Chemical formula: Cu
- Mineral group: Native element (metal)
- Color: Metallic copper-red; commonly tarnishes to brown, black, or green (verdigris)
- Streak: Copper-red to brownish-red
- Hardness (Mohs): ~2.5–3
- Luster: Metallic
- Specific gravity: ≈ 8.9–9.0 (about 8.94 commonly quoted)
- Cleavage: None
- Fracture: Hackly to uneven (sometimes sub-conchoidal in small fragments)
- Transparency: Opaque
If you meant a different copper-containing mineral (e.g., chalcopyrite, bornite, malachite, azurite), tell me which one and I’ll give its properties.
- Chemical formula: Cu
- Mineral group: Native element (metal)
- Color: Metallic copper-red; commonly tarnishes to brown, black, or green (verdigris)
- Streak: Copper-red to brownish-red
- Hardness (Mohs): ~2.5–3
- Luster: Metallic
- Specific gravity: ≈ 8.9–9.0 (about 8.94 commonly quoted)
- Cleavage: None
- Fracture: Hackly to uneven (sometimes sub-conchoidal in small fragments)
- Transparency: Opaque
If you meant a different copper-containing mineral (e.g., chalcopyrite, bornite, malachite, azurite), tell me which one and I’ll give its properties.
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