Tantalite and Vivianite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.2
2.64-2.70
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)
(e.g. graphite).
Cleavage
Good in one direction
{010} Perfect
Mohs Hardness
6-6.5
Not Available
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Tantalite and Vivianite Chemical Formula
While comparing Tantalite and Vivianite 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 Vivianite chemical formula.
- Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Tantalite and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tantalite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tantalite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Tantalite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.