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Vivianite
Vivianite

Ludlamite
Ludlamite



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Vivianite
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Ludlamite

Vivianite and Ludlamite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
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2.64-2.70
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{010} Perfect
-9999
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
 
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3.1-3.2
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Vitreous, pearly on cleavage
3-4
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Vivianite and Ludlamite Chemical Formula

While comparing Vivianite and Ludlamite 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 Ludlamite chemical formula.

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Vivianite and Ludlamite Specific Gravity

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