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Cordierite
Cordierite

Pyrrhotite
Pyrrhotite



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Cordierite
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Pyrrhotite

Cordierite and Pyrrhotite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.57-2.66
4.58-4.65
1.5 Fracture
Subconchoidal, Conchoidal, Brittle
Uneven
1.6 Cleavage
Fair on {100}, poor on {001} and {010}
Absent
1.7 Mohs Hardness
7-7.5
3.5-4.5
1.8 Chemical Composition
Mg2Al4Si5O18
Not Available

Cordierite and Pyrrhotite Chemical Formula

While comparing Cordierite and Pyrrhotite 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 Pyrrhotite chemical formula.

  • Chemical formula of Cordierite- Mg2Al4Si5O18
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Cordierite and Pyrrhotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Pyrrhotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Pyrrhotite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 4.58-4.65 whereas that of Pyrrhotite is 4.58-4.65.