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Aragonite
Aragonite

Cordierite
Cordierite



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Aragonite
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Cordierite

Aragonite and Cordierite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Dilute acid
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.93-2.962.57-2.66
Amber
1 7.18
1.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Subconchoidal, Conchoidal, Brittle
1.6 Cleavage
Distinct on {010}, imperfect {110} and {011}
Fair on {100}, poor on {001} and {010}
1.7 Mohs Hardness
3.5-47-7.5
Amber
2 10
1.8 Chemical Composition
CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Mg2Al4Si5O18

Aragonite and Cordierite Chemical Formula

While comparing Aragonite and Cordierite 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 Aragonite and Cordierite chemical formula.

  • Chemical formula of Aragonite- CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Cordierite- Mg2Al4Si5O18

Aragonite and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.