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Blue John
Blue John

Anatase
Anatase



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Blue John
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Anatase

Blue John and Anatase Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.00-3.253.82-3.97
Amber
1 7.18
1.5 Fracture
Not Available
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Not Available
Perfect on [001] and [011]
1.7 Mohs Hardness
Not Available5.5-6
Amber
2 10
1.8 Chemical Composition
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
TiO 2Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Blue John and Anatase Chemical Formula

While comparing Blue John and Anatase 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 Anatase chemical formula.

  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Anatase- TiO 2Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Blue John and Anatase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Anatase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Anatase Optical Properties during the identification of gemstone. Specific gravity of Blue John is 3.82-3.97 whereas that of Anatase is 3.82-3.97.