Danburite and Cinnabar Physical Properties

Danburite

Cinnabar

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Physical Properties

Tenacity

Brittle

Slightly sectile

Solubility

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

Durability

Specific Gravity

2.97-3.032

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Uneven

Cleavage

{001} Poor

Prismatic {10 1 0}, perfect

Mohs Hardness

72-2.5

2 10

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Chemical Composition

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Danburite and Cinnabar Chemical Formula

While comparing Danburite 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 Danburite and Cinnabar chemical formula.

Chemical formula of Danburite- CaB 2(SiO 4) 2Michael 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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Danburite and Cinnabar Specific Gravity

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