 |
MINERAL IDENTIFICATION PROJECT |
|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | bournonite | 2.50 | perfect | conchoidal | opaque | none | 5.70 | metallic | silver | metallic | tabular | sulfides | Steel-gray streak |
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