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Cordierite and Caledonite Physical Properties


Caledonite and Cordierite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.57-2.66   
5.6-5.76   

Fracture
Subconchoidal, Conchoidal, Brittle   
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)   

Cleavage
Fair on {100}, poor on {001} and {010}   
[001] perfect; [100] distinct   

Mohs Hardness
7-7.5   
2.5-3   

Chemical Composition
Mg2Al4Si5O18   
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Cordierite and Caledonite Chemical Formula

While comparing Cordierite and Caledonite 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 Caledonite chemical formula.

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Cordierite and Caledonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.

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