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Cordierite
Cordierite
☒

Pumpellyite
Pumpellyite
☒



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Cordierite
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Pumpellyite

Cordierite and Pumpellyite 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
 
-
-
-
3.20-3.30
-
Perfect
5-6
Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

Cordierite and Pumpellyite Chemical Formula

While comparing Cordierite and Pumpellyite 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 Pumpellyite chemical formula.

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Cordierite and Pumpellyite Specific Gravity

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