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Vivianite
Vivianite

Andradite
Andradite



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Vivianite
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Andradite

Vivianite and Andradite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.64-2.70
-
{010} Perfect
-9999
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Vivianite and Andradite Chemical Formula

While comparing Vivianite and Andradite 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 Andradite chemical formula.

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Vivianite and Andradite Specific Gravity

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