Starlite and Bustamite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.91-4.73
  
3.32-3.43
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
6.5-7.5
  
5.5-6
  
Chemical Composition
ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Starlite and Bustamite Chemical Formula
While comparing Starlite 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 Starlite and Bustamite chemical formula.
- Chemical formula of Starlite- ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Starlite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Starlite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Starlite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Starlite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.