Bustamite and Dumortierite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Partly soluble in HCl.
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.32-3.43
3.26-3.41
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
5.5-6
7-8.5
Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
AlAl6O3BSi3O18
Bustamite and Dumortierite Chemical Formula
While comparing Bustamite and Dumortierite 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 Bustamite and Dumortierite chemical formula.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Bustamite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bustamite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.