Austinite and Andesine Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Easily soluble in cold dilute HCl
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.12
  
2.65-2.69
  
Fracture
Brittle, Uneven, Brittle, Uneven
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Good in two directions parallel to the prism faces {110}
  
Perfect on {001}, good on {010}
  
Mohs Hardness
4-4.5
  
6-6.5
  
Chemical Composition
CaZn(AsO4)(OH)
  
(Na,Ca)Al1-2Si3-2O8
  
Austinite and Andesine Chemical Formula
While comparing Austinite and Andesine 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 Andesine chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Austinite and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Austinite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.