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Charoite
Charoite

Cordierite
Cordierite



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Charoite
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Cordierite

Charoite and Cordierite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.78
2.57-2.66
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Subconchoidal, Conchoidal, Brittle
1.6 Cleavage
Good in three directions
Fair on {100}, poor on {001} and {010}
1.7 Mohs Hardness
5-6
7-7.5
1.8 Chemical Composition
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Mg2Al4Si5O18

Charoite and Cordierite Chemical Formula

While comparing Charoite 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 Charoite and Cordierite chemical formula.

  • Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Cordierite- Mg2Al4Si5O18

Charoite and Cordierite Specific Gravity

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