Pietersite and Mellite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
1.58-1.60
  
Fracture
Not Available
  
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Not Available
  
{011} Imperfect
  
Mohs Hardness
5
  
2
  
Chemical Composition
Not Available
  
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
  
Pietersite and Mellite Chemical Formula
While comparing Pietersite and Mellite 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 Pietersite and Mellite chemical formula.
>- Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Pietersite and Mellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pietersite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pietersite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Pietersite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.