Kyanite and Selenite Physical Properties

Kyanite and Selenite Chemical Formula

While comparing Kyanite and Selenite 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 Kyanite and Selenite chemical formula.

• Chemical formula of Kyanite- Al2SiO5
• Chemical formula of Selenite- CaSO4·2H2O

Kyanite and Selenite Specific Gravity

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