Vishnevite and Beryllonite Physical Properties

Vishnevite

Beryllonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.79-2.87

1 7.18

1.5 Fracture

Brittle, Uneven

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Perfect

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

1.7 Mohs Hardness

5-65.5-6

2 10

1.8 Chemical Composition

Not Available

NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Vishnevite and Beryllonite Chemical Formula

While comparing Vishnevite 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 Vishnevite and Beryllonite chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Vishnevite and Beryllonite Specific Gravity

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