Cinnabar and Quartz Physical Properties

Cinnabar

Quartz

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Physical Properties

Tenacity

Slightly sectile

Brittle

Solubility

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

Durability

Specific Gravity

22.65

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

Prismatic {10 1 0}, perfect

{0110} Indistinct

Mohs Hardness

2-2.57

2 10

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Chemical Composition

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

SiO₂

Cinnabar and Quartz Chemical Formula

While comparing Cinnabar and Quartz 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 Quartz chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Quartz- SiO₂

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Cinnabar and Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Quartz Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.65 whereas that of Quartz is 2.65.