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Afghanite
Afghanite

Vivianite
Vivianite



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Afghanite
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Vivianite

Afghanite and Vivianite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.55-2.65
Conchoidal
Perfect {10 1 0}
5.5-6
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
 
-
-
-
2.64-2.70
-
{010} Perfect
-9999
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Afghanite and Vivianite Chemical Formula

While comparing Afghanite 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 Afghanite and Vivianite chemical formula.

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Afghanite and Vivianite Specific Gravity

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