Edenite and Andradite Physical Properties

Edenite and Andradite Chemical Formula

While comparing Edenite and Andradite 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 Edenite and Andradite chemical formula.

• Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
• Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Edenite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Edenite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Edenite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.