Bastnasite and Elbaite Physical Properties

Bastnasite

Elbaite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.95-5.02.90-3.10

1 7.18

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Fracture

Uneven

Uneven, Conchoidal

Cleavage

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

Poor/indistinct on {1120} and {1011}

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

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Bastnasite and Elbaite Chemical Formula

While comparing Bastnasite and Elbaite 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 Elbaite chemical formula.

Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

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Bastnasite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.