Ettringite and Stibiotantalite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Partially soluble in water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.77
  
Not Available
  
Fracture
Not Available
  
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Perfect on {10 1 0}
  
{???} Perfect
  
Mohs Hardness
2-2.5
  
5.5-6
  
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
SbTaO 4Ulrich Henn and Claudio C.
  
Ettringite and Stibiotantalite Chemical Formula
While comparing Ettringite 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 Ettringite and Stibiotantalite chemical formula.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Ettringite and Stibiotantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ettringite and Stibiotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Stibiotantalite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is Not Available whereas that of Stibiotantalite is Not Available.