Cinnabar and Colemanite Physical Properties

Cinnabar

Colemanite

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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)

Durability

Specific Gravity

22.40-2.42

1 7.18

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Fracture

Uneven

Cleavage

Prismatic {10 1 0}, perfect

{010} Perfect, {001} Distinct

Mohs Hardness

2-2.54.5

2 10

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Chemical Composition

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

Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cinnabar and Colemanite Chemical Formula

While comparing Cinnabar and Colemanite 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 Colemanite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Red Gemstones

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Cinnabar and Colemanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.