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Hibschite and Blue John Physical Properties


Blue John and Hibschite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.05-3.08   
3.00-3.25   

Fracture
Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle   
Not Available   

Cleavage
None   
Not Available   

Mohs Hardness
6.5   
Not Available   

Chemical Composition
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Hibschite and Blue John Chemical Formula

While comparing Hibschite 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 Hibschite and Blue John chemical formula.

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Hibschite and Blue John Specific Gravity

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

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