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Cordierite
Cordierite

Tantalite
Tantalite



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Cordierite
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Tantalite

Cordierite and Tantalite 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
 
-
-
-
5.2
Subconchoidal, Conchoidal
Good in one direction
6-6.5
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Cordierite and Tantalite Chemical Formula

While comparing Cordierite and Tantalite 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 Tantalite chemical formula.

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Cordierite and Tantalite Specific Gravity

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