Jacobsite and Colemanite Physical Properties

Jacobsite and Colemanite Chemical Formula

While comparing Jacobsite and Colemanite 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 Jacobsite and Colemanite chemical formula.

• Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Jacobsite and Colemanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.