Obsidian and Plumbogummite Physical Properties

Obsidian and Plumbogummite Chemical Formula

While comparing Obsidian and Plumbogummite 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 Plumbogummite chemical formula.

• Chemical formula of Obsidian- SiO2
• Chemical formula of Plumbogummite- PbAl3(PO4)(SO4)(OH)6

Obsidian and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Obsidian and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 4.014 whereas that of Plumbogummite is 4.014.