Creedite and Bustamite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.70
  
3.32-3.43
  
Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {100}
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
4.5
  
5.5-6
  
Chemical Composition
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Creedite and Bustamite Chemical Formula
While comparing Creedite 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 Creedite and Bustamite chemical formula.
- Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Creedite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Creedite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Creedite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.