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Purpurite
Purpurite

Gahnite
Gahnite



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Purpurite
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Gahnite

Purpurite and Gahnite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.2-3.4
Uneven
[100] [001] perfect
4-4.5
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
 
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-
-
4.00-4.62
Conchoidal, Uneven
Indistinct parting on [111]
7.5-8
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Purpurite and Gahnite Chemical Formula

While comparing Purpurite and Gahnite 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 Purpurite and Gahnite chemical formula.

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Purpurite and Gahnite Specific Gravity

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