Vivianite and Pyrope Almandine Physical Properties

Vivianite and Pyrope Almandine Chemical Formula

While comparing Vivianite and Pyrope Almandine 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 Pyrope Almandine chemical formula.

• Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
• Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

Vivianite and Pyrope Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Pyrope Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Pyrope Almandine Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.62-4.20 whereas that of Pyrope Almandine is 3.62-4.20.