Opal and Phosgenite Physical Properties
Tenacity
BrittleWalter Schumann
Sectile
Solubility
hot salt water
Soluble
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
6.13
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Cleavage
None
Distinct on {001} and {110}, indistinct on {100}
Chemical Composition
SiO2 · nH2O
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Opal and Phosgenite Chemical Formula
While comparing Opal and Phosgenite 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 Opal and Phosgenite chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Opal and Phosgenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Phosgenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Phosgenite Optical Properties during the identification of gemstone. Specific gravity of Opal is 6.13 whereas that of Phosgenite is 6.13.