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Blue John
Blue John

Cuprite
Cuprite



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Blue John
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Cuprite

Blue John and Cuprite Physical Properties

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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
-
-
5.85-6.15
Conchoidal
Fair in four directions forming octahedrons
3.5-4
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Blue John and Cuprite Chemical Formula

While comparing Blue John and Cuprite 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 Cuprite chemical formula.

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Blue John and Cuprite Specific Gravity

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