Rossmanite and Kornerupine Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3
3.25-3.45
Fracture
Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
None
Good on {110}
Mohs Hardness
Not Available
6.5
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Rossmanite and Kornerupine Chemical Formula
While comparing Rossmanite 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 Rossmanite and Kornerupine chemical formula.
- Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Rossmanite and Kornerupine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.