Manganotantalite and Foitite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
3.17
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
  
Handbook of mineralogy (2001)
  
Cleavage
Not Available
  
None
  
Mohs Hardness
5.5-6.5
  
7
  
Chemical Composition
MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Manganotantalite and Foitite Chemical Formula
While comparing Manganotantalite and Foitite 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 Manganotantalite and Foitite chemical formula.
- Chemical formula of Manganotantalite- MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Manganotantalite and Foitite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Manganotantalite and Foitite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Manganotantalite and Foitite Optical Properties during the identification of gemstone. Specific gravity of Manganotantalite is 3.17 whereas that of Foitite is 3.17.