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Dravite and Riesling Beryl Physical Properties


Riesling Beryl and Dravite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.03-3.18   
2.66-2.86   

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

Cleavage
{???} Indistinct   
Not Available   

Mohs Hardness
7-7.5   
7.5-8   

Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)   
Al 2Be 3Si 6O 18Martin H.   

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Dravite and Riesling Beryl Chemical Formula

While comparing Dravite and Riesling Beryl 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 Riesling Beryl chemical formula.

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Dravite and Riesling Beryl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Riesling Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Riesling Beryl Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.66-2.86 whereas that of Riesling Beryl is 2.66-2.86.

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