Topaz and Cinnabar Physical Properties

Topaz

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

3.49-3.572

1 7.18

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Fracture

Subconchoidal, Uneven, Conchoidal

Uneven

Cleavage

[001] Perfect

Prismatic {10 1 0}, perfect

Mohs Hardness

82-2.5

2 10

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Chemical Composition

Al₂SiO₄(F,OH)₂

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

Topaz and Cinnabar Chemical Formula

While comparing Topaz 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 Topaz and Cinnabar chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Sagittarius

Topaz Vs Petoskey Stone

Topaz Vs Pietersite

Topaz Vs Quartz Smoky

Topaz and Cinnabar Specific Gravity

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