Pearl and Kornerupine Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.60-2.85
3.25-3.45
Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
none
Good on {110}
Mohs Hardness
2.5-4.5
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
Pearl and Kornerupine Chemical Formula
While comparing Pearl 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 Pearl 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
Pearl and Kornerupine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pearl and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Pearl is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.