|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | bornite | 3.00 | poor | conchoidal | opaque | none | 5.70 | metallic | copper | black | faceted | sulfides | Iridescent purple and blue tarnish (peacock ore). Rarely distinct crystals. |
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