Andalusite and Powellite Physical Properties

Andalusite and Powellite Chemical Formula

While comparing Andalusite and Powellite 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 Andalusite and Powellite chemical formula.

• Chemical formula of Andalusite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
• Chemical formula of Powellite- CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Andalusite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 4.23 whereas that of Powellite is 4.23.