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Sapphire and Bertrandite Physical Properties


Bertrandite and Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
insoluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.03   
2.59-2.60   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Brittle, Metallic, Brittle, Metallic   

Cleavage
None, but may exhibit parting   
{001} Perfect, {110} Distinct, {101} Distinct   

Mohs Hardness
9   
6-7   

Chemical Composition
Al 2 O 3   
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Sapphire and Bertrandite Chemical Formula

While comparing Sapphire and Bertrandite 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 Bertrandite chemical formula.

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Sapphire and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.

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