Cinnabar and Benitoite Physical Properties

Cinnabar

Benitoite

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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)

Insoluble: HCl

Durability

Specific Gravity

23.61-3.68

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

Prismatic {10 1 0}, perfect

[10 1 1] poor

Mohs Hardness

2-2.56-6.5

2 10

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Chemical Composition

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

BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cinnabar and Benitoite Chemical Formula

While comparing Cinnabar and Benitoite 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 Benitoite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cinnabar and Benitoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.