Topaz and Hemimorphite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
3.30-3.50
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
[001] Perfect
Perfect on {110}, poor on {101}, {001} rare
Chemical Composition
Al2SiO4(F,OH)2
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Topaz and Hemimorphite Chemical Formula
While comparing Topaz and Hemimorphite 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 Hemimorphite chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Topaz and Hemimorphite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.