Pumpellyite and Elbaite Physical Properties

Pumpellyite and Elbaite Chemical Formula

While comparing Pumpellyite and Elbaite 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 Elbaite 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 Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Pumpellyite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Pumpellyite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.