Charoite and Cinnabar Physical Properties

Charoite

Cinnabar

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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

2.54-2.782

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

Good in three directions

Prismatic {10 1 0}, perfect

Mohs Hardness

5-62-2.5

2 10

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Chemical Composition

K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Charoite and Cinnabar Chemical Formula

While comparing Charoite 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 Charoite and Cinnabar chemical formula.

Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Charoite and Cinnabar Specific Gravity

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