Cassiterite and Kyanite Physical Properties

Cassiterite

Kyanite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.033.53-3.65

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Splintery

Cleavage

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

[100] perfect [010] imperfect with 79° angle between

Mohs Hardness

6-74-7

2 10

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Chemical Composition

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

Al2SiO5

Cassiterite and Kyanite Chemical Formula

While comparing Cassiterite and Kyanite 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 Kyanite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Kyanite- Al2SiO5

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Cassiterite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.