Dioptase and Stibiotantalite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.25-3.35
  
Not Available
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Perfect in three directions
  
{???} Perfect
  
Mohs Hardness
5
  
5.5-6
  
Chemical Composition
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SbTaO 4Ulrich Henn and Claudio C.
  
Dioptase and Stibiotantalite Chemical Formula
While comparing Dioptase 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 Dioptase and Stibiotantalite chemical formula.
- Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Dioptase and Stibiotantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dioptase and Stibiotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dioptase and Stibiotantalite Optical Properties during the identification of gemstone. Specific gravity of Dioptase is Not Available whereas that of Stibiotantalite is Not Available.