Chrome-Chalcedony and Precious Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
1.98-2.25
Fracture
Not Available
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Cleavage
Not Available
Not Available
Mohs Hardness
6.5-7
5-6.5
Chemical Composition
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
SiO 2 · nH 2OGemdat.org , Management Team (2012)
Chrome-Chalcedony and Precious Opal Chemical Formula
While comparing Chrome-Chalcedony and Precious 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 Chrome-Chalcedony and Precious Opal chemical formula.
- Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
Chrome-Chalcedony and Precious Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.