Cinnabar and Cassiterite Physical Properties

Cinnabar

Cassiterite

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Physical Properties

Tenacity

Slightly sectile

Brittle

Solubility

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

insoluble

Durability

Specific Gravity

26.86-7.03

1 7.18

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Fracture

Uneven

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Prismatic {10 1 0}, perfect

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

Mohs Hardness

2-2.56-7

2 10

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Chemical Composition

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Cinnabar and Cassiterite Chemical Formula

While comparing Cinnabar 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 Cinnabar and Cassiterite chemical formula.

Chemical formula of Cinnabar- HgSMichael 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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Cinnabar and Cassiterite Specific Gravity

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