Phosgenite and Iolite Physical Properties
Tenacity
Sectile
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
6.13
  
2.6-2.7
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
  
Not Available
  
Cleavage
Distinct on {001} and {110}, indistinct on {100}
  
3,1
  
Mohs Hardness
2-3
  
7-7.5
  
Chemical Composition
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Mg2Al4Si5O18
  
Phosgenite and Iolite Chemical Formula
While comparing Phosgenite and 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 Phosgenite and Iolite chemical formula.
- Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Iolite- Mg2Al4Si5O18
Phosgenite and Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phosgenite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosgenite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Phosgenite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.