Cinnabar and Aragonite Physical Properties

Cinnabar

Aragonite

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1 Physical Properties

1.1 Tenacity

Slightly sectile

Brittle

1.2 Solubility

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

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

22.93-2.96

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Prismatic {10 1 0}, perfect

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

2-2.53.5-4

2 10

1.8 Chemical Composition

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

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cinnabar and Aragonite Chemical Formula

While comparing Cinnabar and Aragonite 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 Aragonite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cinnabar and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.