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Dumortierite quartz
Dumortierite quartz

Weloganite
Weloganite



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Dumortierite quartz
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Weloganite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
-
-9999
Al7BO3(SiO4)3O3
 
-
-
-
3.20-3.22
Conchoidal
Perfect on pseudo {0001}
3
Na2SrZrSi6O17(OH)3·3H2O