Cinnabar and Chalcopyrite Physical Properties

Cinnabar

Chalcopyrite

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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)

Soluble

Durability

Specific Gravity

24.1-4.3

1 7.18

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Fracture

Uneven

Cleavage

Prismatic {10 1 0}, perfect

Indistinct on {011}

Mohs Hardness

2-2.53.5-4

2 10

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Chemical Composition

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

CuFeS 2Anthony et al , Handbook of mineralogy (2001)

Cinnabar and Chalcopyrite Chemical Formula

While comparing Cinnabar and Chalcopyrite 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 Chalcopyrite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)

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Cinnabar and Chalcopyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Chalcopyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Chalcopyrite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 4.1-4.3 whereas that of Chalcopyrite is 4.1-4.3.