Pietersite and Bustamite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
3.32-3.43
  
Fracture
Not Available
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
5
  
5.5-6
  
Chemical Composition
Not Available
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Pietersite and Bustamite Chemical Formula
While comparing Pietersite and Bustamite 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 Bustamite chemical formula.
>- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pietersite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pietersite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pietersite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Pietersite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.