Topaz and Hibschite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
3.05-3.08
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle
Cleavage
[001] Perfect
None
Chemical Composition
Al2SiO4(F,OH)2
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Topaz and Hibschite Chemical Formula
While comparing Topaz and Hibschite 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 Hibschite chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Topaz and Hibschite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.