Riebeckite and Kornerupine Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.44
3.25-3.45
Fracture
Uneven, Splintery, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Good on {110}
Mohs Hardness
5.0-6.0
6.5
Chemical Composition
Not Available
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Riebeckite and Kornerupine Chemical Formula
While comparing Riebeckite and Kornerupine 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 Riebeckite and Kornerupine 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
Riebeckite and Kornerupine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Riebeckite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riebeckite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Riebeckite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.