Zincite and Cinnabar Physical Properties

Zincite

Cinnabar

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Physical Properties

Tenacity

Brittle

Slightly sectile

Solubility

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

Durability

Specific Gravity

5.50-5.902

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

On {10 1 0}, perfect; parting on {000 1 }

Prismatic {10 1 0}, perfect

Mohs Hardness

42-2.5

2 10

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Chemical Composition

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Zincite and Cinnabar Chemical Formula

While comparing Zincite 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 Zincite and Cinnabar chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Zincite and Cinnabar Specific Gravity

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