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Vivianite and Cordierite Iolite Physical Properties


Cordierite Iolite 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   
2.56-2.66   

Fracture
(e.g. graphite).   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
{010} Perfect   
Not Available   

Mohs Hardness
Not Available   
7-7.5   

Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.   
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.   

Optical Properties >>
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Vivianite and Cordierite Iolite Chemical Formula

While comparing Vivianite and Cordierite Iolite 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 Cordierite Iolite chemical formula.

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Vivianite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.

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