Cassiterite and Cinnabar Physical Properties

Cassiterite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Brittle

Slightly sectile

1.2 Solubility

insoluble

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

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

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

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

6-72-2.5

2 10

1.8 Chemical Composition

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

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

Cassiterite and Cinnabar Chemical Formula

While comparing Cassiterite and Cinnabar 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 Cinnabar chemical formula.

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

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Cassiterite and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2 whereas that of Cinnabar is 2.