Stibiotantalite and Herderite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.90-3.02
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
{???} Perfect
  
Indistinct on {110}
  
Mohs Hardness
5.5-6
  
5-5.5
  
Chemical Composition
SbTaO 4Ulrich Henn and Claudio C.
  
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
  
Stibiotantalite and Herderite Chemical Formula
While comparing Stibiotantalite and Herderite 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 Herderite chemical formula.
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Stibiotantalite and Herderite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.