Cassiterite and Thulite Physical Properties

Cassiterite

Thulite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.033.1

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Uneven, Conchoidal

Cleavage

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

Perfect {010} imperfect {100}

Mohs Hardness

6-76-7

2 10

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Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Cassiterite and Thulite Chemical Formula

While comparing Cassiterite and Thulite 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 Thulite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Cassiterite and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.1 whereas that of Thulite is 3.1.