Ettringite and Violane Physical Properties

Ettringite and Violane Chemical Formula

While comparing Ettringite and Violane 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 Ettringite and Violane chemical formula.

• Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Violane- (Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

Ettringite and Violane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Violane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Violane Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.22-3.40 whereas that of Violane is 3.22-3.40.