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Oligoclase
Oligoclase

Topaz
Topaz



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Oligoclase
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Topaz

Oligoclase and Topaz Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
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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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3.49-3.57
Subconchoidal, Uneven, Conchoidal
[001] Perfect
8
Al2SiO4(F,OH)2

Oligoclase and Topaz Chemical Formula

While comparing Oligoclase and Topaz 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 Topaz chemical formula.

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Oligoclase and Topaz Specific Gravity

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