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Sapphire and Ajoite Physical Properties


Ajoite and Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
insoluble   
Decomposed by acids   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.03   
2.96   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Not Available   

Cleavage
None, but may exhibit parting   
Perfect on {010}   

Mohs Hardness
9   
5   

Chemical Composition
Al 2 O 3   
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)   

Optical Properties >>
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Sapphire and Ajoite Chemical Formula

While comparing Sapphire and Ajoite 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 Sapphire and Ajoite chemical formula.

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Sapphire and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.96 whereas that of Ajoite is 2.96.

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