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Cordierite
Cordierite

Diopside
Diopside



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Cordierite
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Diopside

Cordierite and Diopside Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.57-2.663.22-3.40
Amber
1 7.18
1.5 Fracture
Subconchoidal, Conchoidal, Brittle
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
1.6 Cleavage
Fair on {100}, poor on {001} and {010}
Distinct/good on {110}
1.7 Mohs Hardness
7-7.55-6
Amber
2 10
1.8 Chemical Composition
Mg2Al4Si5O18
CaMgSi2O6

Cordierite and Diopside Chemical Formula

While comparing Cordierite and Diopside 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 Diopside chemical formula.

  • Chemical formula of Cordierite- Mg2Al4Si5O18
  • Chemical formula of Diopside- CaMgSi2O6

Cordierite and Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Diopside Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 3.22-3.40 whereas that of Diopside is 3.22-3.40.