Austinite and Calcite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Easily soluble in cold dilute HCl
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.12
  
2.67-2.73
  
Fracture
Brittle, Uneven, Brittle, Uneven
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Good in two directions parallel to the prism faces {110}
  
Perfect on [10 1 1] three directions with angle of 74° 55
  
Mohs Hardness
4-4.5
  
3
  
Chemical Composition
CaZn(AsO4)(OH)
  
CaCO 3Ulrich Henn and Claudio C.
  
Austinite and Calcite Chemical Formula
While comparing Austinite and Calcite 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 Calcite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Austinite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.