Cassiterite and Pyrophyllite Physical Properties

Cassiterite

Pyrophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032.65-2.90

1 7.18

1.5 Fracture

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

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

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

{001} Perfect

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

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

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cassiterite and Pyrophyllite Chemical Formula

While comparing Cassiterite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cassiterite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.