Brookite and Cassiterite Physical Properties

Brookite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.87-4.146.86-7.03

1 7.18

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Fracture

Subconchoidal, Conchoidal

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Poor on {120}, in traces on {001}

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

Mohs Hardness

5.5-66-7

2 10

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Chemical Composition

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

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

Brookite and Cassiterite Chemical Formula

While comparing Brookite and Cassiterite 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 Brookite and Cassiterite chemical formula.

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

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Brookite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.