Hurlbutite and Topaz Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90
3.49-3.57
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
None
[001] Perfect
Chemical Composition
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Al2SiO4(F,OH)2
Hurlbutite and Topaz Chemical Formula
While comparing Hurlbutite and Topaz 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 Hurlbutite and Topaz chemical formula.
- Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Topaz- Al2SiO4(F,OH)2
Hurlbutite and Topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hurlbutite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.