Topaz and Taaffeite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
3.60-3.61
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal
Cleavage
[001] Perfect
Imperfect/fair/absent
Chemical Composition
Al2SiO4(F,OH)2
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Topaz and Taaffeite Chemical Formula
While comparing Topaz and Taaffeite 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 Topaz and Taaffeite chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Topaz and Taaffeite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Taaffeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Taaffeite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.60-3.61 whereas that of Taaffeite is 3.60-3.61.