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Glaucophane
Jet
Jet and Glaucophane Physical Properties


Physical Properties
Tenacity
-  
-  
Solubility
-  
-  
Durability
-  
-  
Specific Gravity
3-3.15  
1.19-1.35  
Fracture
Conchoidal  
ConchoidalWalter Schumann  
Cleavage
Good on [110] and on [001]  
None  
Mohs Hardness
6.0-6.5  
2.5-4  
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2  
C  
Optical Properties >>
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Compare Blue Gemstones

Blue Gemstones

Blue Gemstones

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