Cassiterite and Poudretteite Physical Properties

Cassiterite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032.51-2.53

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

Conchoidal, Splintery

1.6 Cleavage

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

None

1.7 Mohs Hardness

6-75

2 10

1.8 Chemical Composition

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

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Cassiterite and Poudretteite Chemical Formula

While comparing Cassiterite and Poudretteite 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 Poudretteite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cassiterite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.