Cordierite and Cassiterite Physical Properties

Cordierite

Cassiterite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.57-2.666.86-7.03

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

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

1.6 Cleavage

Fair on {100}, poor on {001} and {010}

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

1.7 Mohs Hardness

7-7.56-7

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

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

Cordierite and Cassiterite Chemical Formula

While comparing Cordierite 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 Cordierite and Cassiterite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cordierite and Cassiterite Specific Gravity

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