Luster - Nonmetallic
Hardness - Less than 2.5
Streak=Black, Green or Brown
One Direction Cleavage
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Biotite |
Green or Dark Brown Streak |
1 direction, perfect |
A dark-colored mica; usually black, brown or green. Can be peeled into thin sheets. H=2.5 |
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Your Mineral is Biotite!
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