Lazulite and Cordierite Iolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.04-3.17
  
2.56-2.66
  
Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{001} Indistinct, {???} Indistinct
  
Not Available
  
Mohs Hardness
5.5
  
7-7.5
  
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
  
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
  
Lazulite and Cordierite Iolite Chemical Formula
While comparing Lazulite 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 Lazulite and Cordierite Iolite chemical formula.
- Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Lazulite and Cordierite Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazulite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.