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Pleonaste
Pleonaste

Blue John
Blue John



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Pleonaste
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Blue John

Pleonaste and Blue John 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
3.803.00-3.25
Amber
1 7.18
1.5 Fracture
Not Available
Not Available
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
8Not Available
Amber
2 10
1.8 Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Pleonaste and Blue John Chemical Formula

While comparing Pleonaste 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 Pleonaste and Blue John chemical formula.

  • Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Pleonaste and Blue John Specific Gravity

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