Chrome-Chalcedony and Star Ruby Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.95-4.10
Fracture
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Not Available
Not Available
Mohs Hardness
6.5-7
Not Available
Chemical Composition
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chrome-Chalcedony and Star Ruby Chemical Formula
While comparing Chrome-Chalcedony and Star Ruby 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 Star Ruby chemical formula.
- Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chrome-Chalcedony and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.