Sanidine and Cordierite Physical Properties

Sanidine

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

Uneven, Uneven, Gems, Sixth Edition (2006)

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

{001} Perfect, {010} Good

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

Sanidine and Cordierite Chemical Formula

While comparing Sanidine 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 Sanidine and Cordierite chemical formula.

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

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Sanidine and Cordierite Specific Gravity

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