Melanite and Iolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.70-4.10
  
2.6-2.7
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Not Available
  
Cleavage
Not Available
  
3,1
  
Mohs Hardness
6.5-7
  
7-7.5
  
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  
Mg2Al4Si5O18
  
Melanite and Iolite Chemical Formula
While comparing Melanite 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 Melanite and Iolite chemical formula.
- Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Iolite- Mg2Al4Si5O18
Melanite and Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Melanite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Melanite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Melanite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.