Vivianite and Powellite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.64-2.70
4.23
Fracture
(e.g. graphite).
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
{010} Perfect
{111} Distinct
Mohs Hardness
Not Available
3.5-4
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Vivianite and Powellite Chemical Formula
While comparing Vivianite and Powellite 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 Powellite chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Vivianite and Powellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 4.23 whereas that of Powellite is 4.23.