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Blue John
Blue John

Chrysoberyl
Chrysoberyl



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Blue John
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Chrysoberyl

Blue John and Chrysoberyl Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
-
-
3.69-3.81
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Distinct on {110}, imperfect on {010}, poor on {001}
8.5
BeAl 2 O 4

Blue John and Chrysoberyl Chemical Formula

While comparing Blue John and Chrysoberyl 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 Blue John and Chrysoberyl chemical formula.

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Blue John and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John Vs Chrysoberyl during the identification of gemstone. Specific gravity of Blue John is whereas that of Chrysoberyl is .