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Blue John
Blue John

Langbeinite
Langbeinite



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Blue John
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Langbeinite

Blue John and Langbeinite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Slowly dissolves in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.00-3.25Not Available
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, Brittle
1.6 Cleavage
Not Available
None
1.7 Mohs Hardness
Not Available3.5-4
Amber
2 10
1.8 Chemical Composition
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
Not Available

Blue John and Langbeinite Chemical Formula

While comparing Blue John and Langbeinite 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 Langbeinite chemical formula.

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

Another important criteria for qualitative analysis of gemstones is Blue John and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Blue John is Not Available whereas that of Langbeinite is Not Available.