Biotite and Strontianite Physical Properties

Biotite and Strontianite Chemical Formula

While comparing Biotite and Strontianite 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 Biotite and Strontianite chemical formula.

• Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
• Chemical formula of Strontianite- SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

Biotite and Strontianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Strontianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Strontianite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 3.63-3.79 whereas that of Strontianite is 3.63-3.79.