Pumpellyite and Poudretteite Physical Properties

Pumpellyite and Poudretteite Chemical Formula

While comparing Pumpellyite and Poudretteite 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 Pumpellyite and Poudretteite chemical formula.

• Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.
• Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)

Pumpellyite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Pumpellyite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.