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Cordierite
Cordierite

Kunzite
Kunzite



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Cordierite
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Cordierite and Kunzite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.57-2.66
3.15-3.21
1.5 Fracture
Subconchoidal, Conchoidal, Brittle
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Fair on {100}, poor on {001} and {010}
1,2 prismatic
1.7 Mohs Hardness
7-7.5
6-7
1.8 Chemical Composition
Mg2Al4Si5O18
LiAlSi2O6

Cordierite and Kunzite Chemical Formula

While comparing Cordierite and Kunzite 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 Cordierite and Kunzite chemical formula.

  • Chemical formula of Cordierite- Mg2Al4Si5O18
  • Chemical formula of Kunzite- LiAlSi2O6

Cordierite and Kunzite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Kunzite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Kunzite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 3.15-3.21 whereas that of Kunzite is 3.15-3.21.