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Scheelite
Scheelite

Dumortierite quartz
Dumortierite quartz



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Scheelite
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Dumortierite quartz
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
5.9-6.3
Conchoidal, Uneven
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
4.5-5
CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
-9999
-
-
-9999
Al7BO3(SiO4)3O3