Sanidine and Oligoclase Physical Properties

Sanidine

Oligoclase

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.54-2.612.62-2.67

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

{001} Perfect, {010} Good

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Sanidine and Oligoclase Chemical Formula

While comparing Sanidine and Oligoclase 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 Sanidine and Oligoclase chemical formula.

Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Sanidine and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sanidine and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sanidine and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Sanidine is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.