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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 | staurolite | 7.00 | poor | Uneven | opaque | none | 3.73 | glassy | brown | white | prismatic | silicates | Usually cruciform twins at 90 or 60 deg angle. Metamorphic mineral often seen with kyanite |
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