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Sanidine
Sanidine

Blue John
Blue John



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Sanidine
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Blue John

Sanidine and Blue John Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.61
3.00-3.25
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Not Available
1.6 Cleavage
{001} Perfect, {010} Good
Not Available
1.7 Mohs Hardness
6
Not Available
1.8 Chemical Composition
KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Sanidine and Blue John Chemical Formula

While comparing Sanidine 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 Sanidine and Blue John chemical formula.

  • Chemical formula of Sanidine- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Sanidine and Blue John Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sanidine and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sanidine and Blue John Optical Properties during the identification of gemstone. Specific gravity of Sanidine is 3.00-3.25 whereas that of Blue John is 3.00-3.25.