While comparing Selenite and Rinkite Ce 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 Rinkite Ce chemical formula.
Another important criteria for qualitative analysis of gemstones is Selenite and Rinkite Ce Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Selenite and Rinkite Ce Optical Properties during the identification of gemstone. Specific gravity of Selenite is 3.29-3.33 whereas that of Rinkite Ce is 3.29-3.33.