Cassiterite and Taaffeite Physical Properties

Cassiterite

Taaffeite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.033.60-3.61

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Conchoidal

Cleavage

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

Imperfect/fair/absent

Mohs Hardness

6-78-8.5

2 10

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Chemical Composition

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

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Cassiterite and Taaffeite Chemical Formula

While comparing Cassiterite and Taaffeite 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 Taaffeite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

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Cassiterite and Taaffeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.