Erythrite and Kornerupine Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
3.25-3.45
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Good on {110}
Mohs Hardness
Not Available
6.5
Chemical Composition
Co3(AsO4)2•8(H2O)
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Erythrite and Kornerupine Chemical Formula
While comparing Erythrite 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 Erythrite and Kornerupine chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Erythrite and Kornerupine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.