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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
cristobalite
7.0
none
conchoidal
Transparent
none
2.30
glassy
clear
white
faceted
silicates
Crystals rare, usually crusts in cavities in Feldspar rich andesites, rhyolites, obsidian, etc.

 
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