Vivianite and Omphacite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.64-2.70
3.16-3.43
Fracture
(e.g. graphite).
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
{010} Perfect
{110} Good, {110} Good
Mohs Hardness
Not Available
5-6
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Vivianite and Omphacite Chemical Formula
While comparing Vivianite and Omphacite 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 Omphacite chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Vivianite and Omphacite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.