Oligoclase and Chiastolite Physical Properties

Oligoclase and Chiastolite Chemical Formula

While comparing Oligoclase and Chiastolite 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 Chiastolite 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 Chiastolite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006)

Oligoclase and Chiastolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Chiastolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Chiastolite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 3.00-3.15 whereas that of Chiastolite is 3.00-3.15.