Anorthoclase and Cordierite Physical Properties

Anorthoclase

Cordierite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.622.57-2.66

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

From the Greek for oblique and fracture, descriptive of the cleavage

Fair on {100}, poor on {001} and {010}

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Mg2Al4Si5O18

Anorthoclase and Cordierite Chemical Formula

While comparing Anorthoclase and Cordierite 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 Anorthoclase and Cordierite chemical formula.

Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Colorless Gems

Anorthoclase Vs Beryllonite

Anorthoclase Vs Beryl

Anorthoclase Vs Black Opal

Anorthoclase and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthoclase and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthoclase and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Anorthoclase is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.