Variscite and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.42-2.58
4.6-4.76
Fracture
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
[010] perfect
Perfect on {0001}
Mohs Hardness
4-5
Not Available
Chemical Composition
AlPO4 · 2(H2O)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Variscite and Covellite Chemical Formula
While comparing Variscite 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 Variscite and Covellite chemical formula.
- Chemical formula of Variscite- AlPO4 · 2(H2O)
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Variscite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Variscite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Variscite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.