Erythrite and Bustamite Physical Properties
Tenacity
Sectile
  
Not Available
  
Solubility
Not Available
  
Partly soluble in HCl.
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.06
  
3.32-3.43
  
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
  
{100} perfect; {110} and {1 1 0} good; {010} poor
  
Mohs Hardness
Not Available
  
5.5-6
  
Chemical Composition
Co3(AsO4)2•8(H2O)
  
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Erythrite and Bustamite Chemical Formula
While comparing Erythrite 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 Erythrite and Bustamite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Erythrite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.