Tantalite and Andalusite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.2
  
3.05-3.21
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Good in one direction
  
Good on {110}, poor on {100}
  
Mohs Hardness
6-6.5
  
7.5
  
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
Tantalite and Andalusite Chemical Formula
While comparing Tantalite and Andalusite 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 Andalusite chemical formula.
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Tantalite and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tantalite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tantalite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Tantalite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.