Pumpellyite and Verdelite Physical Properties

Pumpellyite and Verdelite Chemical Formula

While comparing Pumpellyite and Verdelite 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 Verdelite 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 Verdelite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Pumpellyite and Verdelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Verdelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite and Verdelite Optical Properties during the identification of gemstone. Specific gravity of Pumpellyite is 2.90-3.40 whereas that of Verdelite is 2.90-3.40.