Hureaulite and Achroite Physical Properties

Hureaulite and Achroite Chemical Formula

While comparing Hureaulite and Achroite 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 Hureaulite and Achroite chemical formula.

• Chemical formula of Hureaulite- Mn2+5(PO 4) 2(PO 3OH) 2 · 4H 2O)Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Hureaulite and Achroite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hureaulite and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hureaulite and Achroite Optical Properties during the identification of gemstone. Specific gravity of Hureaulite is 2.90-3.40 whereas that of Achroite is 2.90-3.40.