Pleonaste and Hibschite Physical Properties

Pleonaste and Hibschite Chemical Formula

While comparing Pleonaste and Hibschite 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 Pleonaste and Hibschite chemical formula.

• Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
• Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Pleonaste and Hibschite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pleonaste and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pleonaste and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Pleonaste is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.