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Blue John
Blue John

Cacoxenite
Cacoxenite



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Blue John
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Cacoxenite

Blue John and Cacoxenite 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
3.00-3.252.2-2.6
Amber
1 7.18
1.5 Fracture
Not Available
Uneven
1.6 Cleavage
Not Available
None
1.7 Mohs Hardness
Not Available3-4
Amber
2 10
1.8 Chemical Composition
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

Blue John and Cacoxenite Chemical Formula

While comparing Blue John and Cacoxenite 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 Cacoxenite chemical formula.

  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Cacoxenite- (Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

Blue John and Cacoxenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Cacoxenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Cacoxenite Optical Properties during the identification of gemstone. Specific gravity of Blue John is 2.2-2.6 whereas that of Cacoxenite is 2.2-2.6.