Crystal Opal and Rock Crystal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
2.65
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Not Available
Not Available
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
SiO 2Walter Schumann , Gemstones of the world (2001)
Crystal Opal and Rock Crystal Chemical Formula
While comparing Crystal Opal and Rock Crystal 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 Rock Crystal chemical formula.
- Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
- Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
Crystal Opal and Rock Crystal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Crystal Opal and Rock Crystal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Rock Crystal Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 2.65 whereas that of Rock Crystal is 2.65.