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Oligoclase
Oligoclase

Pyrope
Pyrope



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Oligoclase
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Pyrope

Oligoclase and Pyrope Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
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)
 
-
insoluble in water
-
3.62-3.87
Conchoidal
None
7-7.5
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Oligoclase and Pyrope Chemical Formula

While comparing Oligoclase and Pyrope 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 Pyrope chemical formula.

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Oligoclase and Pyrope Specific Gravity

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