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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
dumortierite
7.0
poor
Uneven
Translucent
none
3.45
glassy
blue
blue
acicular
silicates
Blue to violet crystals rare; sometimes reddish-brown. Usually fibrous to radiating aggregates. bluish white streak

 
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