Iolite and Liddicoatite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-2.7
  
3.02
  
Fracture
Not Available
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal
  
Cleavage
3,1
  
{0001} Poor
  
Mohs Hardness
7-7.5
  
Not Available
  
Chemical Composition
Mg2Al4Si5O18
  
Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Iolite and Liddicoatite Chemical Formula
While comparing Iolite and Liddicoatite 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 Liddicoatite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Liddicoatite- Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Iolite and Liddicoatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Liddicoatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Liddicoatite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.02 whereas that of Liddicoatite is 3.02.