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Ajoite and Blue John Physical Properties


Blue John and Ajoite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Decomposed by acids   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.96   
3.00-3.25   

Fracture
Not Available   
Not Available   

Cleavage
Perfect on {010}   
Not Available   

Mohs Hardness
5   
Not Available   

Chemical Composition
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Ajoite and Blue John Chemical Formula

While comparing Ajoite 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 Ajoite and Blue John chemical formula.

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Ajoite and Blue John Specific Gravity

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

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