Pearl and Melanite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.60-2.85
  
3.70-4.10
  
Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
none
  
Not Available
  
Mohs Hardness
2.5-4.5
  
6.5-7
  
Chemical Composition
Not Available
  
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  
Pearl and Melanite Chemical Formula
While comparing Pearl and Melanite 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 Pearl and Melanite chemical formula.
>- Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Pearl and Melanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pearl and Melanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Melanite Optical Properties during the identification of gemstone. Specific gravity of Pearl is 3.70-4.10 whereas that of Melanite is 3.70-4.10.