Topaz and Schorl Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
3.18-3.22
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
[001] Perfect
{1011} Indistinct
Mohs Hardness
8
Not Available
Chemical Composition
Al2SiO4(F,OH)2
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Topaz and Schorl Chemical Formula
While comparing Topaz and Schorl 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 Schorl chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Topaz and Schorl Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Schorl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Schorl Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.18-3.22 whereas that of Schorl is 3.18-3.22.