Prasiolite and Cordierite Iolite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
2.56-2.66
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
3,1
  
Not Available
  
Mohs Hardness
7
  
7-7.5
  
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
  
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
  
Prasiolite and Cordierite Iolite Chemical Formula
While comparing Prasiolite and Cordierite Iolite 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 Prasiolite and Cordierite Iolite chemical formula.
- Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Prasiolite and Cordierite Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Prasiolite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prasiolite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Prasiolite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.