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Blue John
Blue John

Falcons Eye
Falcons Eye



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Blue John
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Falcons Eye

Blue John and Falcons Eye Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.58-2.64
-
-
7
SiO 2Walter Schumann , Gemstones of the world (2001)

Blue John and Falcons Eye Chemical Formula

While comparing Blue John and Falcons Eye 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 Falcons Eye chemical formula.

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Blue John and Falcons Eye Specific Gravity

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