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Fibrolite and Blue John Physical Properties


Blue John and Fibrolite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.14-3.25   
3.00-3.25   

Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)   
Not Available   

Cleavage
Not Available   
Not Available   

Mohs Hardness
6-7   
Not Available   

Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009)   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Fibrolite and Blue John Chemical Formula

While comparing Fibrolite 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 Fibrolite and Blue John chemical formula.

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Fibrolite and Blue John Specific Gravity

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

Green Gemstones

Green Gemstones


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