Tantalite and Hexagonite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.2
  
2.98-3.03
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven
  
Cleavage
Good in one direction
  
[110] perfect; [010] distinct
  
Mohs Hardness
6-6.5
  
5-6
  
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
  
Tantalite and Hexagonite Chemical Formula
While comparing Tantalite and Hexagonite 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 Hexagonite chemical formula.
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Tantalite and Hexagonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tantalite and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tantalite and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Tantalite is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.