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Almandine and Vivianite Physical Properties


Vivianite and Almandine Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.30   
2.64-2.70   

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

Cleavage
none   
{010} Perfect   

Mohs Hardness
7-7.5   
Not Available   

Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Almandine and Vivianite Chemical Formula

While comparing Almandine 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 Almandine and Vivianite chemical formula.

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Almandine and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.

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Red Gemstones


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