Lepidocrocite and Alunite Physical Properties

Lepidocrocite and Alunite Chemical Formula

While comparing Lepidocrocite 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 Lepidocrocite and Alunite chemical formula.

• Chemical formula of Lepidocrocite- FeO(OH)
• Chemical formula of Alunite- KAl3(SO4)2(OH)6

Lepidocrocite and Alunite Specific Gravity

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