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Beryllonite and Star Sapphire Physical Properties


Star Sapphire and Beryllonite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.79-2.87   
3.90-4.05   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   
Not Available   

Cleavage
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces   
Not Available   

Mohs Hardness
5.5-6   
Not Available   

Chemical Composition
NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Al 2O 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Beryllonite and Star Sapphire Chemical Formula

While comparing Beryllonite and Star Sapphire 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 Beryllonite and Star Sapphire chemical formula.

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Beryllonite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.

Colorless Gems

Colorless Gems


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