Hyalite and Cordierite Iolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.56-2.66
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
5.5-6.5
  
7-7.5
  
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
  
Hyalite and Cordierite Iolite Chemical Formula
While comparing Hyalite 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 Hyalite and Cordierite Iolite chemical formula.
- Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Hyalite and Cordierite Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hyalite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hyalite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Hyalite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.