Topaz and Benitoite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Insoluble: HCl
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
3.61-3.68
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
[001] Perfect
[10 1 1] poor
Chemical Composition
Al2SiO4(F,OH)2
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Topaz and Benitoite Chemical Formula
While comparing Topaz and Benitoite 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 Benitoite chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Topaz and Benitoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.