Riebeckite and Beryllonite Physical Properties

Riebeckite

Beryllonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.442.79-2.87

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

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

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

1.7 Mohs Hardness

5.0-6.05.5-6

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Beryllonite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Beryllonite chemical formula.

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

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Riebeckite and Beryllonite Specific Gravity

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