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MINERAL IDENTIFICATION PROJECT


Search found 1 mineral.


Mineral
Hard- ness
Cleavage
Fracture
Trans- parency
10% HCl Reaction
SG
Luster
Color
Streak
Xtal Form
Mineral Class
Comments
biotite (mica group)
2.5
basal
Uneven
Transparent
none
2.80
glassy
black
white
tabular
silicates
Color black, brown to dark green.

 
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