Emerald and Franklinite Physical Properties

Emerald and Franklinite Chemical Formula

While comparing Emerald and Franklinite 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 Emerald and Franklinite chemical formula.

• Chemical formula of Emerald- Be₃Al₂SiO₆
• Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Emerald and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.