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Cordierite
Cordierite

Shigaite
Shigaite



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Cordierite
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Shigaite

Cordierite and Shigaite 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
 
Moderately flexible
-
-
2.32
-
Perfect on {0001}
2
Pb6Cu3BiS4

Cordierite and Shigaite Chemical Formula

While comparing Cordierite and Shigaite 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 Shigaite chemical formula.

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Cordierite and Shigaite Specific Gravity

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