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Vivianite and Tantalite Physical Properties


Tantalite and Vivianite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.64-2.70   
5.2   

Fracture
(e.g. graphite).   
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
{010} Perfect   
Good in one direction   

Mohs Hardness
Not Available   
6-6.5   

Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.   
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references   

Optical Properties >>
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Vivianite and Tantalite Chemical Formula

While comparing Vivianite 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 Vivianite and Tantalite chemical formula.

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Vivianite and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 5.2 whereas that of Tantalite is 5.2.

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