Beryllonite and Lazulite Physical Properties

Beryllonite

Lazulite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.79-2.873.04-3.17

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

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

{001} Indistinct, {???} Indistinct

Mohs Hardness

5.5-65.5

2 10

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Chemical Composition

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

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Beryllonite and Lazulite Chemical Formula

While comparing Beryllonite and Lazulite 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 Lazulite chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Compare Colorless Gems

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Beryllonite Vs Hambergite

Beryllonite Vs Herderite

Beryllonite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.