Kyanite and Augelite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.53-3.65
2.70-2.75
Fracture
Splintery, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
[100] perfect [010] imperfect with 79° angle between
From the Greek for luster, for its pearly luster on the cleavage.
Chemical Composition
Not Available
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Kyanite and Augelite Chemical Formula
While comparing Kyanite and Augelite 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 Augelite chemical formula.
>- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Kyanite and Augelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.