Helenite and Romanchite Physical Properties

Helenite and Romanchite Chemical Formula

While comparing Helenite and Romanchite 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 Romanchite chemical formula.

• Chemical formula of Helenite- SiO₂
• Chemical formula of Romanchite- BaAl2Si2O8

Helenite and Romanchite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Helenite and Romanchite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Helenite and Romanchite Optical Properties during the identification of gemstone. Specific gravity of Helenite is 4.70-4.74 whereas that of Romanchite is 4.70-4.74.