Zircon and Austinite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
insoluble
  
Easily soluble in cold dilute HCl
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.93-4.73
  
4.12
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Brittle, Uneven, Brittle, Uneven
  
Cleavage
{110} and {111}
  
Good in two directions parallel to the prism faces {110}
  
Mohs Hardness
7.5
  
4-4.5
  
Chemical Composition
ZrSiO4
  
CaZn(AsO4)(OH)
  
Zircon and Austinite Chemical Formula
While comparing Zircon 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 Zircon and Austinite chemical formula.
- Chemical formula of Zircon- ZrSiO4
- Chemical formula of Austinite- CaZn(AsO4)(OH)
Zircon and Austinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zircon and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Austinite Optical Properties during the identification of gemstone. Specific gravity of Zircon is 4.12 whereas that of Austinite is 4.12.