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Orthoclase
Orthoclase

Blue John
Blue John



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Orthoclase
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Blue John

Orthoclase and Blue John Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.54-2.61
Uneven
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
6
KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
3.00-3.25
-
Perfect
-9999
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Orthoclase and Blue John Chemical Formula

While comparing Orthoclase 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 Orthoclase and Blue John chemical formula.

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Orthoclase and Blue John Specific Gravity

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