Oligoclase and Andradite Garnet Physical Properties

Oligoclase and Andradite Garnet Chemical Formula

While comparing Oligoclase and Andradite Garnet 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 Andradite Garnet 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 Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

Oligoclase and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.