Crystal Opal and Star Ruby Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
3.95-4.10
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Not Available
Not Available
Mohs Hardness
5.5-6.5
Not Available
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Crystal Opal and Star Ruby Chemical Formula
While comparing Crystal Opal 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 Crystal Opal and Star Ruby chemical formula.
- Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Crystal Opal and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Crystal Opal and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.