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Cordierite and Mottramite Physical Properties


Mottramite and Cordierite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.57-2.66   
5.9   

Fracture
Subconchoidal, Conchoidal, Brittle   
Sub-Conchoidal, Brittle, Metallic   

Cleavage
Fair on {100}, poor on {001} and {010}   
None observed   

Mohs Hardness
7-7.5   
3   

Chemical Composition
Mg2Al4Si5O18   
Not Available   

Optical Properties >>
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Cordierite and Mottramite Chemical Formula

While comparing Cordierite and Mottramite 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 Mottramite chemical formula.

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Cordierite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 5.9 whereas that of Mottramite is 5.9.

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