Friedelite and Opal Physical Properties

Friedelite and Opal Chemical Formula

While comparing Friedelite 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 Friedelite and Opal chemical formula.

• Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
• Chemical formula of Opal- SiO₂ · nH₂O

Friedelite and Opal Specific Gravity

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