Celestine and Bustamite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.90-4.00
  
3.32-3.43
  
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {001}, good on {210}, poor on {010}
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
3-3.5
  
5.5-6
  
Chemical Composition
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Celestine and Bustamite Chemical Formula
While comparing Celestine 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 Celestine and Bustamite chemical formula.
- Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Celestine and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Celestine and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Celestine is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.