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Benitoite
Benitoite

Papagoite
Papagoite



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Benitoite
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Papagoite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
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
 
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-
-
3.25
-
Imperfect in one direction
5-5.5
CaCuAlSi 2O 6(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)