Franklinite and Esperite Physical Properties

Franklinite and Esperite Chemical Formula

While comparing Franklinite and Esperite 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 Franklinite and Esperite chemical formula.

• Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Franklinite and Esperite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Franklinite and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Esperite Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 4.28-4.42 whereas that of Esperite is 4.28-4.42.