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Paraiba
Paraiba
☒

Spinel
Spinel
☒



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Paraiba
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Spinel
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.04-3.13
-
Indiscernible
7-7.5
-
 
-
-
-
3.64-3.66
Conchoidal, Uneven
None, but may exhibit slight parting
8
MgAl2O4

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