Purpurite and Alunite Physical Properties

Purpurite and Alunite Chemical Formula

While comparing Purpurite 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 Purpurite and Alunite chemical formula.

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Purpurite and Alunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Alunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite Vs Alunite during the identification of gemstone. Specific gravity of Purpurite is whereas that of Alunite is .