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Cinnabar
Cinnabar

Malachite
Malachite



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Cinnabar
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Malachite

Cinnabar and Malachite Physical Properties

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

23.25-4.10
1 7.18
👆🏻

Fracture

Uneven
Conchoidal, Uneven

Cleavage

Prismatic {10 1 0}, perfect
Perfect on { 2 01} fair on {010}

Mohs Hardness

2-2.53.5-4
2 10
👆🏻

Chemical Composition

HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Cu2CO3(OH)2

Cinnabar and Malachite Chemical Formula

While comparing Cinnabar and Malachite 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 Malachite chemical formula.

  • Chemical formula of Cinnabar- HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Malachite- Cu2CO3(OH)2

Cinnabar and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Malachite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.25-4.10 whereas that of Malachite is 3.25-4.10.