Cassiterite and Piemontite Physical Properties

Cassiterite

Piemontite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

6.86-7.03-9999

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal, Irregular

Uneven, Splintery

Cleavage

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

[001] good, [100] distinct

Mohs Hardness

6-76-6.5

2 10

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Chemical Composition

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

Ca2Al3(SiO4)(Si2O7)O(OH)

Cassiterite and Piemontite Chemical Formula

While comparing Cassiterite and Piemontite 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 Piemontite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Piemontite- Ca2Al3(SiO4)(Si2O7)O(OH)

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Cassiterite and Piemontite Specific Gravity

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