Obsidian and Dallasite Physical Properties

Obsidian and Dallasite Chemical Formula

While comparing Obsidian and Dallasite 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 Dallasite chemical formula.

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Obsidian and Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Obsidian and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.