Kyanite and Bustamite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Partly soluble in HCl.
Durability
Not Available
Not Available
Specific Gravity
3.53-3.65
3.32-3.43
Fracture
Splintery, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
[100] perfect [010] imperfect with 79° angle between
{100} perfect; {110} and {1 1 0} good; {010} poor
Chemical Composition
Not Available
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Kyanite and Bustamite Chemical Formula
While comparing Kyanite 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 Kyanite and Bustamite chemical formula.
>- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Kyanite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.