Kornerupine and Goethite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
3.25-3.45
4.27-4.29
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
Good on {110}
Perfect {010}
Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
FeO(OH)Arthur Thomas , Gemstones (2009)
Kornerupine and Goethite Chemical Formula
While comparing Kornerupine and Goethite 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 Goethite 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 Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Kornerupine and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kornerupine and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Goethite Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 4.27-4.29 whereas that of Goethite is 4.27-4.29.