Edenite and Cordierite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.37
  
2.57-2.66
  
Fracture
Conchoidal, Brittle, Conchoidal
  
Subconchoidal, Conchoidal, Brittle
  
Cleavage
Good on (110)
  
Fair on {100}, poor on {001} and {010}
  
Mohs Hardness
5-6
  
7-7.5
  
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
  
Mg2Al4Si5O18
  
Edenite and Cordierite Chemical Formula
While comparing Edenite 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 Edenite and Cordierite chemical formula.
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
- Chemical formula of Cordierite- Mg2Al4Si5O18
Edenite and Cordierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Edenite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Edenite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.