Iolite and Baryte Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-2.7
  
4.3-5
  
Fracture
Not Available
  
Irregular/uneven
  
Cleavage
3,1
  
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
  
Mohs Hardness
7-7.5
  
3-3.5
  
Chemical Composition
Mg2Al4Si5O18
  
Not Available
  
Iolite and Baryte Chemical Formula
While comparing Iolite and Baryte 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 Baryte chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
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Iolite and Baryte Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Baryte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Baryte Optical Properties during the identification of gemstone. Specific gravity of Iolite is 4.3-5 whereas that of Baryte is 4.3-5.