Selenite and Jelly Opal Physical Properties

Selenite and Jelly Opal Chemical Formula

While comparing Selenite and Jelly Opal 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 Selenite and Jelly Opal chemical formula.

• Chemical formula of Selenite- CaSO4·2H2O
• Chemical formula of Jelly Opal- SiO2*nH2O

Selenite and Jelly Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Selenite and Jelly Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Selenite and Jelly Opal Optical Properties during the identification of gemstone. Specific gravity of Selenite is 1.98-2.50 whereas that of Jelly Opal is 1.98-2.50.