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Pectolite and Cordierite Physical Properties


Cordierite and Pectolite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.74-2.90   
2.57-2.66   

Fracture
Uneven, Gemstones (2009), Splintery   
Subconchoidal, Conchoidal, Brittle   

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

Mohs Hardness
4.5-5   
7-7.5   

Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.   
Mg2Al4Si5O18   

Optical Properties >>
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Pectolite and Cordierite Chemical Formula

While comparing Pectolite 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 Pectolite and Cordierite chemical formula.

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Pectolite and Cordierite Specific Gravity

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

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