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Hiddenite
Hiddenite

Blue John
Blue John



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Hiddenite
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Blue John

Hiddenite and Blue John Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.15-3.213.00-3.25
1 7.18
👆🏻

Fracture

-
-

Cleavage

1,2 prismatic
Perfect

Mohs Hardness

6-7-9999
2 10
👆🏻

Chemical Composition

LiAlSi2O6
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Hiddenite and Blue John Chemical Formula

While comparing Hiddenite 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 Hiddenite and Blue John chemical formula.

  • Chemical formula of Hiddenite- LiAlSi2O6
  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Hiddenite and Blue John Specific Gravity

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