Topaz and Montebrasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.49-3.57
2.98-3.10
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
[001] Perfect
{100} Perfect, {110} Good, {011} Distinct
Chemical Composition
Al2SiO4(F,OH)2
LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
Topaz and Montebrasite Chemical Formula
While comparing Topaz and Montebrasite 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 Montebrasite chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
Topaz and Montebrasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Montebrasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Montebrasite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 2.98-3.10 whereas that of Montebrasite is 2.98-3.10.