Edenite and Covellite Physical Properties
Tenacity
Brittle
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.05-3.37
4.6-4.76
Fracture
Conchoidal, Brittle, Conchoidal
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Good on (110)
Perfect on {0001}
Mohs Hardness
5-6
Not Available
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Edenite and Covellite Chemical Formula
While comparing Edenite 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 Edenite and Covellite chemical formula.
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Edenite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Edenite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Edenite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.