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Fayalite and Beryllonite Physical Properties


Beryllonite and Fayalite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.392   
2.79-2.87   

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

Cleavage
{010} moderate, {100} imperfect   
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces   

Mohs Hardness
6.5-7   
5.5-6   

Chemical Composition
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Fayalite and Beryllonite Chemical Formula

While comparing Fayalite and Beryllonite 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 Fayalite and Beryllonite chemical formula.

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Fayalite and Beryllonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fayalite and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.

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Yellow Gemstones


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