Manganotantalite and Neptunite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
3.19-3.23
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
  
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
  
Cleavage
Not Available
  
{110} good
  
Mohs Hardness
5.5-6.5
  
5-6
  
Chemical Composition
MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Manganotantalite and Neptunite Chemical Formula
While comparing Manganotantalite and Neptunite 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 Neptunite chemical formula.
- Chemical formula of Manganotantalite- MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Manganotantalite and Neptunite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Manganotantalite and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Manganotantalite and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Manganotantalite is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.