Cinnabar and Kurnakovite Physical Properties

Cinnabar

Kurnakovite

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Physical Properties

Tenacity

Slightly sectile

Solubility

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

Soluble

Durability

Specific Gravity

21.847-1.852

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

Prismatic {10 1 0}, perfect

Poor to indistinct on {010}

Mohs Hardness

2-2.52-3

2 10

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Chemical Composition

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

Ca3Al3(SiO4)3(OH)

Cinnabar and Kurnakovite Chemical Formula

While comparing Cinnabar and Kurnakovite 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 Kurnakovite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Kurnakovite- Ca3Al3(SiO4)3(OH)

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Cinnabar and Kurnakovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Kurnakovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Kurnakovite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 1.847-1.852 whereas that of Kurnakovite is 1.847-1.852.