Almandine Garnet and Opal Physical Properties

Almandine Garnet and Opal Chemical Formula

While comparing Almandine Garnet and Opal 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 Almandine Garnet and Opal chemical formula.

• Chemical formula of Almandine Garnet- Fe₃Al₂Si₃O₁₂
• Chemical formula of Opal- SiO₂ · nH₂O

Almandine Garnet and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine Garnet and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine Garnet and Opal Optical Properties during the identification of gemstone. Specific gravity of Almandine Garnet is 1.98-2.25 whereas that of Opal is 1.98-2.25.