Austinite and Stibiotantalite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Easily soluble in cold dilute HCl
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.12
  
Not Available
  
Fracture
Brittle, Uneven, Brittle, Uneven
  
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Good in two directions parallel to the prism faces {110}
  
{???} Perfect
  
Mohs Hardness
4-4.5
  
5.5-6
  
Chemical Composition
CaZn(AsO4)(OH)
  
SbTaO 4Ulrich Henn and Claudio C.
  
Austinite and Stibiotantalite Chemical Formula
While comparing Austinite and Stibiotantalite 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 Stibiotantalite chemical formula.
- Chemical formula of Austinite- CaZn(AsO4)(OH)
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Austinite and Stibiotantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Austinite and Stibiotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Austinite and Stibiotantalite Optical Properties during the identification of gemstone. Specific gravity of Austinite is Not Available whereas that of Stibiotantalite is Not Available.