Topaz and Friedelite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
3.06-3.19
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven
Cleavage
[001] Perfect
{010} Perfect
Chemical Composition
Al2SiO4(F,OH)2
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Topaz and Friedelite Chemical Formula
While comparing Topaz and Friedelite 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 Friedelite chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Topaz and Friedelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.