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Oligoclase
Oligoclase

Pleonast
Pleonast



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Oligoclase
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Pleonast

Oligoclase and Pleonast Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.62-2.67
Uneven
From the Greek, oligos and kasein, little cleavage.
6-6.5
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
 
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-
-
-9999
-
Perfect
-9999
MgAl2O4

Oligoclase and Pleonast Chemical Formula

While comparing Oligoclase and Pleonast 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 Oligoclase and Pleonast chemical formula.

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Oligoclase and Pleonast Specific Gravity

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