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Cordierite
Cordierite

Riebeckite
Riebeckite



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Cordierite
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Riebeckite

Cordierite and Riebeckite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.57-2.66
Subconchoidal, Conchoidal
Fair on {100}, poor on {001} and {010}
7-7.5
Mg2Al4Si5O18
 
Brittle
-
-
3.28-3.44
Uneven, Splintery
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
5.0-6.0
Na2Fe2+3Fe3+2Si8O22(OH)2

Cordierite and Riebeckite Chemical Formula

While comparing Cordierite and Riebeckite 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 Cordierite and Riebeckite chemical formula.

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Cordierite and Riebeckite Specific Gravity

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