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Aragonite
Aragonite

Blue John
Blue John



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Aragonite
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Blue John

Aragonite and Blue John Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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
 
-
-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Aragonite and Blue John Chemical Formula

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

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Aragonite and Blue John Specific Gravity

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