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Pleonast
Pleonast

Gahnite
Gahnite



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Pleonast
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Gahnite

Pleonast and Gahnite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Perfect
-9999
MgAl2O4
 
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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)

Pleonast and Gahnite Chemical Formula

While comparing Pleonast 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 Pleonast and Gahnite chemical formula.

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Pleonast and Gahnite Specific Gravity

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