Austinite and Turquoise Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Easily soluble in cold dilute HCl
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.12
  
2.30-2.90
  
Fracture
Brittle, Uneven, Brittle, Uneven
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
Good in two directions parallel to the prism faces {110}
  
Good to perfect_usually N/A
  
Mohs Hardness
4-4.5
  
5-6
  
Chemical Composition
CaZn(AsO4)(OH)
  
CuAl6(PO4)4(OH)8 • 4H2O
  
Austinite and Turquoise Chemical Formula
While comparing Austinite and Turquoise 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 Turquoise chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
Austinite and Turquoise Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.