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MINERAL IDENTIFICATION PROJECT |
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Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | manganite | 4.00 | perfect | Uneven | opaque | none | 4.30 | submetallic | silver | brown | prismatic | hydroxides | Dark grey to black color with deep striations on facets. Soluable in HCl. |
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