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Sapphire and Tanzanite Physical Properties


Tanzanite and Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
insoluble   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
3.95-4.03   
3.35   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)   

Cleavage
None, but may exhibit parting   
Perfect {010}, imperfect {100}   

Mohs Hardness
9   
6.5-7   

Chemical Composition
Al 2 O 3   
Ca2Al3(SiO4)3(OH)   

Optical Properties >>
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Sapphire and Tanzanite Chemical Formula

While comparing Sapphire and Tanzanite 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 Tanzanite chemical formula.

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Sapphire and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.35 whereas that of Tanzanite is 3.35.

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