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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 | lazurite | 5.00 | poor | Uneven | opaque | none | 2.38 | glassy | blue | blue | microcrystalline | silicates | Dark blue masses with white calcite and pyrite (lapus lazuli). Light blue streak. The blue mineral in the precious stone Lapis Lazuli. |
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