Arfvedsonite and Ettringite Physical Properties

Arfvedsonite and Ettringite Chemical Formula

While comparing Arfvedsonite and Ettringite 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 Arfvedsonite and Ettringite chemical formula.

• Chemical formula of Arfvedsonite- NaNa2(Fe++4Fe+++)Si8O22(OH)2
• Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Arfvedsonite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Arfvedsonite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Arfvedsonite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Arfvedsonite is 1.77 whereas that of Ettringite is 1.77.