Ametrine and Biotite Physical Properties

Ametrine and Biotite Chemical Formula

While comparing Ametrine 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 Ametrine and Biotite chemical formula.

• Chemical formula of Ametrine- SiO₂
• Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

Ametrine and Biotite Specific Gravity

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