Kornerupine and Austinite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Easily soluble in cold dilute HCl
Durability
Not Available
Not Available
Specific Gravity
3.25-3.45
4.12
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
Brittle, Uneven, Brittle, Uneven
Cleavage
Good on {110}
Good in two directions parallel to the prism faces {110}
Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
CaZn(AsO4)(OH)
Kornerupine and Austinite Chemical Formula
While comparing Kornerupine and Austinite 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 Kornerupine and Austinite chemical formula.
- Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Kornerupine and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kornerupine and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Austinite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 4.12 whereas that of Austinite is 4.12.