Manganotantalite and Biotite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.7-3.3
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Even, Yellow, White
  
Cleavage
Not Available
  
Perfect on the {001}
  
Mohs Hardness
5.5-6.5
  
2.5-3.0
  
Chemical Composition
MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
K(Mg,Fe++)3[AlSi3O10(OH,F)2
  
Manganotantalite and Biotite Chemical Formula
While comparing Manganotantalite and Biotite 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 Biotite chemical formula.
- Chemical formula of Manganotantalite- MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Manganotantalite and Biotite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Manganotantalite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Manganotantalite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Manganotantalite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.