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Tanzanite and Star Sapphire Physical Properties


Star Sapphire and Tanzanite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Hard   
Not Available   

Specific Gravity
3.35   
3.90-4.05   

Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)   
Not Available   

Cleavage
Perfect {010}, imperfect {100}   
Not Available   

Mohs Hardness
6.5-7   
Not Available   

Chemical Composition
Ca2Al3(SiO4)3(OH)   
Al 2O 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Tanzanite and Star Sapphire Chemical Formula

While comparing Tanzanite and Star Sapphire 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 Tanzanite and Star Sapphire chemical formula.

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Tanzanite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.

Semi Precious

Semi Precious


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