Sylvite and Cinnabar Physical Properties

Sylvite

Cinnabar

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Physical Properties

Tenacity

Brittle

Slightly sectile

Solubility

Soluble

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

Durability

Specific Gravity

1.9932

1 7.18

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Fracture

Uneven

Cleavage

Perfect on [100], [010], [001]

Prismatic {10 1 0}, perfect

Mohs Hardness

2.52-2.5

2 10

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Chemical Composition

KCl

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

Sylvite and Cinnabar Chemical Formula

While comparing Sylvite 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 Sylvite and Cinnabar chemical formula.

Chemical formula of Sylvite- KCl
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sylvite and Cinnabar Specific Gravity

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