Covellite and Vivianite Physical Properties
Tenacity
Flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
2.64-2.70
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
(e.g. graphite).
Cleavage
Perfect on {0001}
{010} Perfect
Mohs Hardness
Not Available
Not Available
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Covellite and Vivianite Chemical Formula
While comparing Covellite and Vivianite 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 Covellite and Vivianite chemical formula.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Covellite and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Covellite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.