Radiolarite and Alexandrite Physical Properties

Radiolarite and Alexandrite Chemical Formula

While comparing Radiolarite and Alexandrite 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 Radiolarite and Alexandrite chemical formula.

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

Radiolarite and Alexandrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Radiolarite and Alexandrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Radiolarite and Alexandrite Optical Properties during the identification of gemstone. Specific gravity of Radiolarite is 3.69-3.81 whereas that of Alexandrite is 3.69-3.81.