Serpentine and Alunite Physical Properties

Serpentine and Alunite Chemical Formula

While comparing Serpentine and Alunite 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 Serpentine and Alunite chemical formula.

• Chemical formula of Serpentine- H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
• Chemical formula of Alunite- KAl3(SO4)2(OH)6

Serpentine and Alunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Serpentine and Alunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serpentine and Alunite Optical Properties during the identification of gemstone. Specific gravity of Serpentine is 2.6-2.9 whereas that of Alunite is 2.6-2.9.