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Iolite
Iolite

Cavansite
Cavansite



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Iolite
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Cavansite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.6-2.7
-
3,1
7-7.5
Mg2Al4Si5O18
 
Brittle
-
-
2.25-2.33
-
Good on {010}
3-4
Ca(VO)Si4O10•4(H2O)