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Blue John
Blue John

Ammolite
Ammolite



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Blue John
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Ammolite

Blue John and Ammolite 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
3.00-3.252.75-2.80
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Granular
1.6 Cleavage
Not Available
no true cleavage
1.7 Mohs Hardness
Not Available4
Amber
2 10
1.8 Chemical Composition
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
Not Available

Blue John and Ammolite Chemical Formula

While comparing Blue John and Ammolite 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 Ammolite chemical formula.

  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
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Blue John and Ammolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Ammolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Ammolite Optical Properties during the identification of gemstone. Specific gravity of Blue John is 2.75-2.80 whereas that of Ammolite is 2.75-2.80.