Cinnabar and Cavansite Physical Properties

Cinnabar

Cavansite

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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)

Durability

Specific Gravity

22.25-2.33

1 7.18

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Fracture

Uneven

Cleavage

Prismatic {10 1 0}, perfect

Good on {010}

Mohs Hardness

2-2.53-4

2 10

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Chemical Composition

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

Ca(VO)Si4O10•4(H2O)

Cinnabar and Cavansite Chemical Formula

While comparing Cinnabar and Cavansite 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 Cavansite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cavansite- Ca(VO)Si4O10•4(H2O)

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Cinnabar and Cavansite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Cavansite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Cavansite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.25-2.33 whereas that of Cavansite is 2.25-2.33.