Helenite and Pollucite Physical Properties

Helenite and Pollucite Chemical Formula

While comparing Helenite and Pollucite 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 Helenite and Pollucite chemical formula.

• Chemical formula of Helenite- SiO₂
• Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Helenite and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Helenite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Helenite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Helenite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.