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Andradite Garnet
Andradite Garnet

Blue John
Blue John



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Andradite Garnet
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Blue John

Andradite Garnet 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
3.8-3.93.00-3.25
Amber
1 7.18
1.5 Fracture
Not Available
Not Available
1.6 Cleavage
None
Not Available
1.7 Mohs Hardness
6.5-7.5Not Available
Amber
2 10
1.8 Chemical Composition
Ca3Fe3+2Si3O12
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Andradite Garnet and Blue John Chemical Formula

While comparing Andradite Garnet 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 Andradite Garnet and Blue John chemical formula.

  • Chemical formula of Andradite Garnet- Ca3Fe3+2Si3O12
  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Andradite Garnet and Blue John Specific Gravity

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