Halite and Topaz Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Water-soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.17
  
3.49-3.57
  
Fracture
Conchoidal, Brittle, Metallic
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
Perfect {001}, three directions cubic
  
[001] Perfect
  
Mohs Hardness
2.0-2.5
  
8
  
Chemical Composition
NaCl
  
Al2SiO4(F,OH)2
  
Halite and Topaz Chemical Formula
While comparing Halite and Topaz 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 Halite and Topaz chemical formula.
- Chemical formula of Halite- NaCl
- Chemical formula of Topaz- Al2SiO4(F,OH)2
Halite and Topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Halite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Halite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Halite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.