Oligoclase and Amazonite Physical Properties

Oligoclase

Amazonite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.62-2.672.55-2.57

1 7.18

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Fracture

Uneven

Cleavage

From the Greek, oligos and kasein, little cleavage.

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

Mohs Hardness

6-6.56-6.5

2 10

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Chemical Composition

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

KAlSi₃O₈

Oligoclase and Amazonite Chemical Formula

While comparing Oligoclase and Amazonite 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 Amazonite chemical formula.

Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Amazonite- KAlSi₃O₈

Compare Colorless Gems

Oligoclase Vs Zektzerite

Oligoclase Vs Taaffeite

Oligoclase Vs Muscovite

Oligoclase and Amazonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Amazonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Amazonite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 2.55-2.57 whereas that of Amazonite is 2.55-2.57.