Dumortierite and Williamsite Physical Properties

Dumortierite and Williamsite Chemical Formula

While comparing Dumortierite and Williamsite 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 Dumortierite and Williamsite chemical formula.

• Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
• Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Dumortierite and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.