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Oligoclase
Oligoclase

Forsterite
Forsterite



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Oligoclase
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Forsterite

Oligoclase and Forsterite Physical Properties

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)
 
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-
-
3.23-3.26
Conchoidal
Perfect on {010} imperfect on {100}
6.5-7
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Oligoclase and Forsterite Chemical Formula

While comparing Oligoclase and Forsterite 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 Forsterite chemical formula.

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Oligoclase and Forsterite Specific Gravity

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