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Cinnabar
Cinnabar

Aragonite
Aragonite



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Cinnabar
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Cinnabar and Aragonite Physical Properties

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
Not Available
1.4 Specific Gravity
2
2.93-2.96
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
2-2.5
3.5-4
1.8 Chemical Composition
HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Michael O’Donoghue , 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 O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Aragonite- CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

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.