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Blue John
Blue John

Fuchsite
Fuchsite



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Blue John
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Fuchsite

Blue John and Fuchsite 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)
 
-
-
-
2.77-2.88
Uneven
Perfect basal
2.5
K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

Blue John and Fuchsite Chemical Formula

While comparing Blue John and Fuchsite 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 Fuchsite chemical formula.

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Blue John and Fuchsite Specific Gravity

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