Precious Opal and Cerussite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
6.46-6.57
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Cleavage
Not Available
Good [110] and [021]
Mohs Hardness
5-6.5
3-3.5
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Precious Opal and Cerussite Chemical Formula
While comparing Precious Opal and Cerussite 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 Precious Opal and Cerussite chemical formula.
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
- Chemical formula of Cerussite- PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Precious Opal and Cerussite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Precious Opal and Cerussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Cerussite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 6.46-6.57 whereas that of Cerussite is 6.46-6.57.