White topaz and Austinite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Easily soluble in cold dilute HCl
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
4.12
  
Fracture
Not Available
  
Brittle, Uneven, Brittle, Uneven
  
Cleavage
Not Available
  
Good in two directions parallel to the prism faces {110}
  
Mohs Hardness
Not Available
  
4-4.5
  
Chemical Composition
Not Available
  
CaZn(AsO4)(OH)
  
White topaz and Austinite Chemical Formula
While comparing White topaz and Austinite 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 White topaz and Austinite chemical formula.
>- Chemical formula of Austinite- CaZn(AsO4)(OH)
White topaz and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is White topaz and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White topaz and Austinite Optical Properties during the identification of gemstone. Specific gravity of White topaz is 4.12 whereas that of Austinite is 4.12.