Sardonyx and Pleonaste Physical Properties

Sardonyx and Pleonaste Chemical Formula

While comparing Sardonyx and Pleonaste 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 Sardonyx and Pleonaste chemical formula.

• Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
• Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Sardonyx and Pleonaste Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Pleonaste Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Pleonaste Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 3.80 whereas that of Pleonaste is 3.80.