Iolite and Hanksite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Readily soluble in water
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-2.7
  
2.562
  
Fracture
Not Available
  
Uneven, Conchoidal, Brittle
  
Cleavage
3,1
  
Good on {0001}
  
Mohs Hardness
7-7.5
  
3-3.5
  
Chemical Composition
Mg2Al4Si5O18
  
KNa22(SO4)9(CO3)2Cl
  
Iolite and Hanksite Chemical Formula
While comparing Iolite and Hanksite 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 Iolite and Hanksite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Hanksite- KNa22(SO4)9(CO3)2Cl
Iolite and Hanksite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Hanksite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Hanksite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.562 whereas that of Hanksite is 2.562.