Cordierite and Serpentine Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.57-2.66
  
2.44-2.62
  
Fracture
Subconchoidal, Conchoidal, Brittle
  
Uneven, Uneven, Gemstones of the world (2001) More from other references
  
Cleavage
Fair on {100}, poor on {001} and {010}
  
Not Available
  
Mohs Hardness
7-7.5
  
2.5-5.5
  
Chemical Composition
Mg2Al4Si5O18
  
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
  
Cordierite and Serpentine Chemical Formula
While comparing Cordierite and Serpentine 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 Serpentine chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Serpentine- H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Cordierite and Serpentine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Serpentine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Serpentine Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.44-2.62 whereas that of Serpentine is 2.44-2.62.