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