Adularia and Cordierite Physical Properties

Adularia

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

2.54-2.612.57-2.66

1 7.18

1.5 Fracture

Not Available

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

67-7.5

2 10

1.8 Chemical Composition

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

Mg2Al4Si5O18

Adularia and Cordierite Chemical Formula

While comparing Adularia 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 Adularia and Cordierite chemical formula.

Chemical formula of Adularia- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Gems Found in America

Adularia Vs Andalusite

Adularia Vs Anglesite

Adularia Vs Anhydrite

Adularia and Cordierite Specific Gravity

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