Violane and Black Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.22-3.40
1.97-2.22
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Not Available
Not Available
Chemical Composition
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
SiO 2 + H 2OUlrich Henn and Claudio C.
Violane and Black Opal Chemical Formula
While comparing Violane and Black 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 Violane and Black Opal chemical formula.
- Chemical formula of Violane- (Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Violane and Black Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Violane and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Violane and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Violane is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.