Siderite and Biotite Physical Properties

Siderite and Biotite Chemical Formula

While comparing Siderite 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 Siderite and Biotite chemical formula.

• Chemical formula of Siderite- Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

Siderite and Biotite Specific Gravity

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