Apophyllite and Stibiotantalite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.50
  
Not Available
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Perfect on (001)
  
{???} Perfect
  
Mohs Hardness
4.5-5
  
5.5-6
  
Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
  
SbTaO 4Ulrich Henn and Claudio C.
  
Apophyllite and Stibiotantalite Chemical Formula
While comparing Apophyllite 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 Apophyllite and Stibiotantalite chemical formula.
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Apophyllite and Stibiotantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite and Stibiotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Stibiotantalite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is Not Available whereas that of Stibiotantalite is Not Available.