Annabergite and Covellite Physical Properties
Tenacity
Sectile
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.07
4.6-4.76
Fracture
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Perfect on {010}, indistinct on {100} and {102}
Perfect on {0001}
Mohs Hardness
2
Not Available
Chemical Composition
Ni3(AsO4)2•8(H2O)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Annabergite and Covellite Chemical Formula
While comparing Annabergite 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 Annabergite and Covellite chemical formula.
- Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Annabergite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Annabergite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.