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Blue John
Blue John

Aragonite
Aragonite



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Blue John
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Aragonite

Blue John and Aragonite 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
Dilute acid
-
2.93-2.96
Subconchoidal, Conchoidal
Distinct on {010}, imperfect {110} and {011}
3.5-4
CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Blue John and Aragonite Chemical Formula

While comparing Blue John and Aragonite 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 Aragonite chemical formula.

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Blue John and Aragonite Specific Gravity

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