Austinite and Hanksite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Easily soluble in cold dilute HCl
  
Readily soluble in water
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.12
  
2.562
  
Fracture
Brittle, Uneven, Brittle, Uneven
  
Uneven, Conchoidal, Brittle
  
Cleavage
Good in two directions parallel to the prism faces {110}
  
Good on {0001}
  
Mohs Hardness
4-4.5
  
3-3.5
  
Chemical Composition
CaZn(AsO4)(OH)
  
KNa22(SO4)9(CO3)2Cl
  
Austinite and Hanksite Chemical Formula
While comparing Austinite and Hanksite 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 Austinite and Hanksite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Hanksite- KNa22(SO4)9(CO3)2Cl
Austinite and Hanksite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Hanksite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Hanksite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.562 whereas that of Hanksite is 2.562.