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Beryllonite and Elbaite Physical Properties


Elbaite 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   
2.90-3.10   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   

Cleavage
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces   
Poor/indistinct on {1120} and {1011}   

Mohs Hardness
5.5-6   
7   

Chemical Composition
NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references   

Optical Properties >>
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Beryllonite and Elbaite Chemical Formula

While comparing Beryllonite and Elbaite 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 Elbaite chemical formula.

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Beryllonite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.

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