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Star Sapphire
Star Sapphire
☒

Benitoite
Benitoite
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Star Sapphire
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Benitoite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.90-4.05
-
None
-9999
Al 2O 3Ulrich Henn and Claudio C.
 
-
Insoluble: HCl
-
3.61-3.68
Conchoidal
[10 1 1] poor
6-6.5
BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references