Omphacite and Tantalite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.16-3.43
  
5.2
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{110} Good, {110} Good
  
Good in one direction
  
Mohs Hardness
5-6
  
6-6.5
  
Chemical Composition
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
  
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
  
Omphacite and Tantalite Chemical Formula
While comparing Omphacite 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 Omphacite and Tantalite chemical formula.
- Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Omphacite and Tantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Omphacite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 5.2 whereas that of Tantalite is 5.2.