Star Sapphire and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
4.6-4.76
Fracture
Not Available
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Not Available
Perfect on {0001}
Mohs Hardness
Not Available
Not Available
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Star Sapphire and Covellite Chemical Formula
While comparing Star Sapphire 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 Star Sapphire and Covellite chemical formula.
- Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Star Sapphire and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Star Sapphire and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Covellite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 4.6-4.76 whereas that of Covellite is 4.6-4.76.