Stibiotantalite and Onyx Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.55-2.70
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Not Available
  
Cleavage
{???} Perfect
  
Indiscernible
  
Mohs Hardness
5.5-6
  
6.5-7
  
Chemical Composition
SbTaO 4Ulrich Henn and Claudio C.
  
SiO2
  
Stibiotantalite and Onyx Chemical Formula
While comparing Stibiotantalite and Onyx 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 Stibiotantalite and Onyx chemical formula.
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
- Chemical formula of Onyx- SiO2
Stibiotantalite and Onyx Specific Gravity
Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Onyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Onyx Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.55-2.70 whereas that of Onyx is 2.55-2.70.