Vivianite and Allanite Physical Properties

Vivianite and Allanite Chemical Formula

While comparing Vivianite and Allanite 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 Allanite chemical formula.

• Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
>

Vivianite and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Allanite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.40-4.20 whereas that of Allanite is 3.40-4.20.