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Blue John
Eilat stone
Eilat stone and Blue John Physical Properties


Physical Properties
Tenacity
-  
-  
Solubility
-  
-  
Durability
-  
-  
Specific Gravity
3.00-3.25  
-9999  
Fracture
-  
-  
Cleavage
Perfect  
-  
Mohs Hardness
-9999  
-9999  
Chemical Composition
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)  
Cu3(PO4)(OH)3  
Optical Properties >>
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Compare Blue Gemstones

Blue Gemstones

Blue Gemstones

Compare Blue Gemstones

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