Pumpellyite and Danburite Physical Properties

Pumpellyite and Danburite Chemical Formula

While comparing Pumpellyite and Danburite 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 Danburite 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 Danburite- CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pumpellyite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Pumpellyite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.