Amazonite and Biotite Physical Properties

Amazonite and Biotite Chemical Formula

While comparing Amazonite and Biotite 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 Amazonite and Biotite chemical formula.

• Chemical formula of Amazonite- KAlSi₃O₈
• Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

Amazonite and Biotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amazonite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amazonite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Amazonite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.