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Gyrolite
Gyrolite

Blue John
Blue John



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Gyrolite
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Blue John

Gyrolite and Blue John Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.483.00-3.25
Amber
1 7.18
1.5 Fracture
Brittle, Uneven, Brittle, Uneven
Not Available
1.6 Cleavage
Perfect on {001}
Not Available
1.7 Mohs Hardness
2Not Available
Amber
2 10
1.8 Chemical Composition
NaCa16Si23AlO60(OH)8•64(H2O)
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Gyrolite and Blue John Chemical Formula

While comparing Gyrolite 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 Gyrolite and Blue John chemical formula.

  • Chemical formula of Gyrolite- NaCa16Si23AlO60(OH)8•64(H2O)
  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Gyrolite and Blue John Specific Gravity

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