Rhodolite and Obsidian Physical Properties

Rhodolite and Obsidian Chemical Formula

While comparing Rhodolite and Obsidian 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 Rhodolite and Obsidian chemical formula.

• Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
• Chemical formula of Obsidian- SiO2

Rhodolite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodolite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodolite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Rhodolite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.