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Blue John
Blue John

Dioptase
Dioptase



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Blue John
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Dioptase

Blue John and Dioptase 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
Soluble
-
3.25-3.35
Conchoidal, ConchoidalWalter Schumann
Perfect in three directions
5
CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Blue John and Dioptase Chemical Formula

While comparing Blue John and Dioptase 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 Dioptase chemical formula.

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Blue John and Dioptase Specific Gravity

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