Cinnabar and Apophyllite Physical Properties

Cinnabar

Apophyllite

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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

22.30-2.50

1 7.18

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Fracture

Uneven

Cleavage

Prismatic {10 1 0}, perfect

Perfect on (001)

Mohs Hardness

2-2.54.5-5

2 10

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Chemical Composition

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

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Cinnabar and Apophyllite Chemical Formula

While comparing Cinnabar and Apophyllite 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 Apophyllite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Compare Red Gemstones

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Cinnabar and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.