Cassiterite and Elbaite Physical Properties

Cassiterite

Elbaite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.032.90-3.10

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Uneven, Conchoidal

Cleavage

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

Poor/indistinct on {1120} and {1011}

Mohs Hardness

6-77

2 10

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Chemical Composition

SnO 2Michael 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

Cassiterite and Elbaite Chemical Formula

While comparing Cassiterite 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 Cassiterite and Elbaite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael 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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Cassiterite and Elbaite Specific Gravity

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