Sunstone and Bustamite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.62-2.65
  
3.32-3.43
  
Fracture
Gemstones of the world (2001)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
001
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
6
  
5.5-6
  
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sunstone and Bustamite Chemical Formula
While comparing Sunstone 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 Sunstone and Bustamite chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sunstone and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.