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Bertrandite and Augelite Physical Properties


Augelite and Bertrandite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.59-2.60   
2.70-2.75   

Fracture
Brittle, Metallic, Brittle, Metallic   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
{001} Perfect, {110} Distinct, {101} Distinct   
From the Greek for luster, for its pearly luster on the cleavage.   

Mohs Hardness
6-7   
4.5-5   

Chemical Composition
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)   
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Bertrandite and Augelite Chemical Formula

While comparing Bertrandite and Augelite 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 Bertrandite and Augelite chemical formula.

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Bertrandite and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.

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