Faustite and Beryllonite Physical Properties

Faustite

Beryllonite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.92.79-2.87

1 7.18

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Fracture

Conchoidal

Cleavage

{???} Indistinct

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

Mohs Hardness

4.55.5-6

2 10

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Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Faustite and Beryllonite Chemical Formula

While comparing Faustite 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 Faustite and Beryllonite chemical formula.

Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Faustite and Beryllonite Specific Gravity

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