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Piemontite and Blue John Physical Properties


Blue John and Piemontite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
Not Available   
3.00-3.25   

Fracture
Uneven, Splintery   
Not Available   

Cleavage
[001] good, [100] distinct   
Not Available   

Mohs Hardness
6-6.5   
Not Available   

Chemical Composition
Not Available   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Piemontite and Blue John Chemical Formula

While comparing Piemontite 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 Piemontite and Blue John chemical formula.

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Piemontite and Blue John Specific Gravity

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

Red Gemstones

Red Gemstones


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