Bastnasite and Cassiterite Physical Properties

Bastnasite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

4.95-5.06.86-7.03

1 7.18

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Fracture

Uneven

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

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

{100} imperfect, {110} indistinct; partings on {111} or {011}

Mohs Hardness

4-56-7

2 10

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Chemical Composition

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

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bastnasite and Cassiterite Chemical Formula

While comparing Bastnasite and Cassiterite 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 Cassiterite chemical formula.

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

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Bastnasite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bastnasite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.