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Dravite and Tanzanite Physical Properties


Tanzanite and Dravite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
3.03-3.18   
3.35   

Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)   

Cleavage
{???} Indistinct   
Perfect {010}, imperfect {100}   

Mohs Hardness
7-7.5   
6.5-7   

Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)   
Ca2Al3(SiO4)3(OH)   

Optical Properties >>
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Dravite and Tanzanite Chemical Formula

While comparing Dravite 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 Dravite and Tanzanite chemical formula.

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Dravite and Tanzanite Specific Gravity

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

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