Sillimanite and Hexagonite Physical Properties

Sillimanite and Hexagonite Chemical Formula

While comparing Sillimanite and Hexagonite 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 Sillimanite and Hexagonite chemical formula.

• Chemical formula of Sillimanite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Sillimanite and Hexagonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.