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Sapphire and Variscite Physical Properties


Variscite and Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
insoluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.03   
2.42-2.58   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle   

Cleavage
None, but may exhibit parting   
[010] perfect   

Mohs Hardness
9   
4-5   

Chemical Composition
Al 2 O 3   
AlPO4 · 2(H2O)   

Optical Properties >>
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Sapphire and Variscite Chemical Formula

While comparing Sapphire and Variscite 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 Variscite chemical formula.

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Sapphire and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Variscite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.42-2.58 whereas that of Variscite is 2.42-2.58.

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