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Pleonast
Pleonast

Umbalite
Umbalite



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Pleonast
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Umbalite

Pleonast and Umbalite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Perfect
-9999
MgAl2O4
 
-
-
-
3.62-4.33
Uneven
Indiscernible
7-7.5
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Pleonast and Umbalite Chemical Formula

While comparing Pleonast and Umbalite 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 Umbalite chemical formula.

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Pleonast and Umbalite Specific Gravity

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