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Staurolite
Staurolite
☒

Padparadscha
Padparadscha
☒



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Staurolite
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Padparadscha
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.7-3.8
Subconchoidal, Conchoidal
Distinct on {010}
7-7.5
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
 
-
-
-
3.95-4.10
-
None
9
Al 2O 3Ulrich Henn and Claudio C.