Spodumene and Bustamite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.21
  
3.32-3.43
  
Fracture
Uneven, Subconchoidal, Gemstones (2009)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
6-7
  
5.5-6
  
Chemical Composition
LiAlSi2O6
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Spodumene and Bustamite Chemical Formula
While comparing Spodumene 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 Spodumene and Bustamite chemical formula.
- Chemical formula of Spodumene- LiAlSi2O6
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spodumene and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spodumene and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.