Riebeckite and Cordierite Physical Properties

Riebeckite

Cordierite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.442.57-2.66

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

1.7 Mohs Hardness

5.0-6.07-7.5

2 10

1.8 Chemical Composition

Not Available

Mg2Al4Si5O18

Riebeckite and Cordierite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Cordierite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18

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Riebeckite and Cordierite Specific Gravity

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