Alexandrite and Helenite Physical Properties

Alexandrite and Helenite Chemical Formula

While comparing Alexandrite and Helenite 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 Alexandrite and Helenite chemical formula.

• Chemical formula of Alexandrite- BeAl ₂ O ₄
• Chemical formula of Helenite- SiO₂

Alexandrite and Helenite Specific Gravity

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