Tantalite and Verdite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.2
  
2.80-3.0
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Not Available
  
Cleavage
Good in one direction
  
{110} Good
  
Mohs Hardness
6-6.5
  
3
  
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
NaFeS2•2(H2O)
  
Tantalite and Verdite Chemical Formula
While comparing Tantalite and Verdite 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 Tantalite and Verdite chemical formula.
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Verdite- NaFeS2•2(H2O)
Tantalite and Verdite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tantalite and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tantalite and Verdite Optical Properties during the identification of gemstone. Specific gravity of Tantalite is 2.80-3.0 whereas that of Verdite is 2.80-3.0.