Iolite and Chrome Tourmaline Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-2.7
  
2.85-3.35
  
Fracture
Not Available
  
ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
3,1
  
3,2
  
Mohs Hardness
7-7.5
  
7-7.5
  
Chemical Composition
Mg2Al4Si5O18
  
Tourmaline is a series of several different minerals with unique chemical formulas.
  
Iolite and Chrome Tourmaline Chemical Formula
While comparing Iolite and Chrome Tourmaline 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 Chrome Tourmaline chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.
Iolite and Chrome Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.