Beryllonite and Riebeckite Physical Properties

Beryllonite

Riebeckite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.79-2.873.28-3.44

1 7.18

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Fracture

Conchoidal

Uneven, Splintery

Cleavage

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

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

Mohs Hardness

5.5-65.0-6.0

2 10

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Chemical Composition

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

Na2Fe2+3Fe3+2Si8O22(OH)2

Beryllonite and Riebeckite Chemical Formula

While comparing Beryllonite and Riebeckite 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 Riebeckite chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Riebeckite- Na2Fe2+3Fe3+2Si8O22(OH)2

Compare Colorless Gems

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Beryllonite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.