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Tanzanite
Tanzanite
☒

Cat s Eye
Cat s Eye
☒



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Tanzanite
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Cat s Eye
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
Hard
3.35
Uneven, Conchoidal
Perfect {010}, imperfect {100}
6.5-7
Ca2Al3(SiO4)3(OH)
 
-
-
-
3.5-3.8
-
1,1 ; 3,2
8.5
BeAl 2 O 4