Obsidian and Alunite Physical Properties

Obsidian and Alunite Chemical Formula

While comparing Obsidian 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 Obsidian and Alunite chemical formula.

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Obsidian and Alunite Specific Gravity

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