Bastnasite and Danburite Physical Properties

Bastnasite

Danburite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.95-5.02.97-3.03

1 7.18

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Fracture

Uneven

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

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

{001} Poor

Mohs Hardness

4-57

2 10

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Chemical Composition

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

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bastnasite and Danburite Chemical Formula

While comparing Bastnasite and Danburite 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 Danburite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bastnasite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.