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Celestine
Celestine

Blue John
Blue John



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Celestine
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Blue John

Celestine and Blue John Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.90-4.00
Conchoidal
Perfect on {001}, good on {210}, poor on {010}
3-3.5
SrSO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Celestine and Blue John Chemical Formula

While comparing Celestine 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 Celestine and Blue John chemical formula.

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Celestine and Blue John Specific Gravity

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