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Coral and Blue John Physical Properties


Blue John and Coral Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.60-2.70   
3.00-3.25   

Fracture
Irregular, Irregular, Gemstones of the world (2001)   
Not Available   

Cleavage
Not Available   
Not Available   

Mohs Hardness
3-4   
Not Available   

Chemical Composition
CaCO 3Ulrich Henn and Claudio C.   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Coral and Blue John Chemical Formula

While comparing Coral and Blue John physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Coral and Blue John chemical formula.

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Coral and Blue John Specific Gravity

Another important criteria for qualitative analysis of gemstones is Coral and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Coral and Blue John Optical Properties during the identification of gemstone. Specific gravity of Coral is 3.00-3.25 whereas that of Blue John is 3.00-3.25.

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