Taaffeite and Black Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.60-3.61
1.97-2.22
Fracture
Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Imperfect/fair/absent
Not Available
Mohs Hardness
8-8.5
6-6.5
Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
SiO 2 + H 2OUlrich Henn and Claudio C.
Taaffeite and Black Opal Chemical Formula
While comparing Taaffeite 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 Taaffeite and Black Opal chemical formula.
- Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Taaffeite and Black Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Taaffeite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Taaffeite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Taaffeite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.