Chalcedony and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
4.6-4.76
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Absent
Perfect on {0001}
Mohs Hardness
6.5-7
Not Available
Chemical Composition
SiO2
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chalcedony and Covellite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Covellite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chalcedony and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Covellite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 4.6-4.76 whereas that of Covellite is 4.6-4.76.