Demantoid and Tantalite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.77-3.95
  
5.2
  
Fracture
Not Available
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
Good in one direction
  
Mohs Hardness
6.5
  
6-6.5
  
Chemical Composition
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
  
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
Demantoid and Tantalite Chemical Formula
While comparing Demantoid and Tantalite 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 Demantoid and Tantalite chemical formula.
- Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Demantoid and Tantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Demantoid and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Demantoid and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Demantoid is 5.2 whereas that of Tantalite is 5.2.