Cassiterite and Marcasite Physical Properties

Cassiterite

Marcasite

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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

6.86-7.034.80-4.90

1 7.18

1.5 Fracture

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

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

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

{010} Indistinct

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

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

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

Cassiterite and Marcasite Chemical Formula

While comparing Cassiterite and Marcasite 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 Marcasite chemical formula.

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

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Cassiterite and Marcasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.