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Gypsum
Gypsum
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Vivianite
Vivianite
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Gypsum
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Vivianite

Gypsum and Vivianite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Flexible
Soluble
-
2.20-2.40
Conchoidal, Splintery, Fibrous
Perfect on {010}, distinct on {100}
2
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
 
-
-
-
2.64-2.70
-
{010} Perfect
-9999
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Gypsum and Vivianite Chemical Formula

While comparing Gypsum 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 Gypsum and Vivianite chemical formula.

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Gypsum and Vivianite Specific Gravity

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