Marcasite and Cassiterite Physical Properties

Marcasite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

4.80-4.906.86-7.03

1 7.18

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Fracture

Uneven

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

{010} Indistinct

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

Mohs Hardness

6-6.56-7

2 10

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Chemical Composition

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

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

Marcasite and Cassiterite Chemical Formula

While comparing Marcasite 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 Marcasite and Cassiterite chemical formula.

Chemical formula of Marcasite- FeS 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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Marcasite and Cassiterite Specific Gravity

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