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Glaucophane and Heliodor Golden Beryl Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.68-2.72   
3-3.15   

Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)   
Conchoidal, Brittle, Conchoidal   

Cleavage
Not Available   
Good on [110] and on [001]   

Mohs Hardness
7.5-8   
6.0-6.5   

Chemical Composition
Not Available   
[ ]Na2(Mg3Al2)Si8O22(OH)2   

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