Kyanite and Covellite Physical Properties
Tenacity
Brittle
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.53-3.65
4.6-4.76
Fracture
Splintery, Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
[100] perfect [010] imperfect with 79° angle between
Perfect on {0001}
Mohs Hardness
4-7
Not Available
Chemical Composition
Not Available
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Kyanite and Covellite Chemical Formula
While comparing Kyanite and Covellite 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 Kyanite and Covellite chemical formula.
>- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Kyanite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.