Malachite and Cinnabar Physical Properties

Malachite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.2 Solubility

Not Available

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

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-4.102

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on { 2 01} fair on {010}

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

3.5-42-2.5

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

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

Malachite and Cinnabar Chemical Formula

While comparing Malachite 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 Malachite and Cinnabar chemical formula.

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

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Malachite and Cinnabar Specific Gravity

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