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Sapphire
Sapphire

Tinaksite
Tinaksite



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Sapphire
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Tinaksite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
insoluble
-
3.95-4.03
Uneven
None, but may exhibit parting
9
Al 2 O 3
 
-
-
-
2.82
-
Perfect in one direction, indistinct in one direction
6
K2Na(Ca,Mn)2Ti[O|Si7O18(OH)]