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Emerald and Tanzanite Physical Properties


Tanzanite and Emerald Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Hard   
Hard   

Specific Gravity
2.67-2.78   
3.35   

Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)   

Cleavage
Imperfect on the [0001]   
Perfect {010}, imperfect {100}   

Mohs Hardness
7.5-8   
6.5-7   

Chemical Composition
Be3Al2SiO6   
Ca2Al3(SiO4)3(OH)   

Optical Properties >>
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Emerald and Tanzanite Chemical Formula

While comparing Emerald 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 Emerald and Tanzanite chemical formula.

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Emerald and Tanzanite Specific Gravity

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

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