Bastnasite and Beryllonite Physical Properties

Bastnasite

Beryllonite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.95-5.02.79-2.87

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

Imperfect to indistinct on {10 1 0}, parting on {0001}

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

Mohs Hardness

4-55.5-6

2 10

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Chemical Composition

(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Bastnasite and Beryllonite Chemical Formula

While comparing Bastnasite 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 Bastnasite and Beryllonite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bastnasite and Beryllonite Specific Gravity

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