Cassiterite and Variscite Physical Properties

Cassiterite

Variscite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.032.42-2.58

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Conchoidal, Splintery, ConchoidalWalter Schumann

Cleavage

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

[010] perfect

Mohs Hardness

6-74-5

2 10

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Chemical Composition

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

AlPO₄ · 2(H₂O)

Cassiterite and Variscite Chemical Formula

While comparing Cassiterite and Variscite 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 Variscite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Variscite- AlPO₄ · 2(H₂O)

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Cassiterite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.