Vivianite and Periclase Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.64-2.70
3.7-3.9
Fracture
(e.g. graphite).
Conchoidal, Brittle
Cleavage
{010} Perfect
{001} perfect; {111} imperfect, may exhibit parting on , {011}
Mohs Hardness
Not Available
5.5-6
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Vivianite and Periclase Chemical Formula
While comparing Vivianite and Periclase 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 Periclase chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Vivianite and Periclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Periclase Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.7-3.9 whereas that of Periclase is 3.7-3.9.