Oligoclase and Painite Physical Properties

Oligoclase and Painite Chemical Formula

While comparing Oligoclase and Painite 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 Oligoclase and Painite chemical formula.

• Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Painite- CaZrBAl 9O 18Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Oligoclase and Painite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Painite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Painite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 4.00-4.03 whereas that of Painite is 4.00-4.03.