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Blue John
Blue John

Idocrase
Idocrase



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Blue John
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Idocrase

Blue John and Idocrase Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
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3.00-3.25
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Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
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-
-
-9999
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Indiscernible
-9999
Ca10(Mg,Fe)2(Si2O7)2(SiO4)2O(OH)2

Blue John and Idocrase Chemical Formula

While comparing Blue John and Idocrase 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 Idocrase chemical formula.

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Blue John and Idocrase Specific Gravity

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