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Cordierite
Cordierite

Pectolite
Pectolite



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Cordierite
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Pectolite

Cordierite and Pectolite 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
-
-
2.74-2.90
Uneven, Splintery
Perfect on {100} and {001}
4.5-5
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

Cordierite and Pectolite Chemical Formula

While comparing Cordierite and Pectolite 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 Pectolite chemical formula.

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Cordierite and Pectolite Specific Gravity

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