Biotite and Magnetite Physical Properties

Biotite and Magnetite Chemical Formula

While comparing Biotite and Magnetite 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 Magnetite chemical formula.

• Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
• Chemical formula of Magnetite- Fe 3O 4Ulrich Henn and Claudio C.

Biotite and Magnetite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Magnetite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite and Magnetite Optical Properties during the identification of gemstone. Specific gravity of Biotite is 5.2 whereas that of Magnetite is 5.2.