Hibonite and Bustamite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.84
  
3.32-3.43
  
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{0001} good, {10 1 0} parting
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
7.5-8
  
5.5-6
  
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Hibonite and Bustamite Chemical Formula
While comparing Hibonite 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 Hibonite and Bustamite chemical formula.
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hibonite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibonite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.