Kyanite and Sapphirine Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.53-3.65
3.40-3.58
Fracture
Splintery, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven
Cleavage
[100] perfect [010] imperfect with 79° angle between
{010} Perfect
Chemical Composition
Not Available
(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Kyanite and Sapphirine Chemical Formula
While comparing Kyanite and Sapphirine 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 Sapphirine chemical formula.
>- Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Kyanite and Sapphirine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite and Sapphirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Sapphirine Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3.40-3.58 whereas that of Sapphirine is 3.40-3.58.