Topaz and Moldavite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
2.32-2.38
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
[001] Perfect
Not Available
Chemical Composition
Al2SiO4(F,OH)2
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
Topaz and Moldavite Chemical Formula
While comparing Topaz and Moldavite 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 Moldavite chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
Topaz and Moldavite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Moldavite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Moldavite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.32-2.38 whereas that of Moldavite is 2.32-2.38.