Anatase and Black Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.82-3.97
1.97-2.22
Fracture
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on [001] and [011]
Not Available
Mohs Hardness
5.5-6
6-6.5
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
SiO 2 + H 2OUlrich Henn and Claudio C.
Anatase and Black Opal Chemical Formula
While comparing Anatase 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 Anatase and Black Opal chemical formula.
- Chemical formula of Anatase- TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Anatase and Black Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anatase and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anatase and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Anatase is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.