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Cordierite
Cordierite

Kornerupine
Kornerupine



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Cordierite
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Kornerupine

Cordierite and Kornerupine 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
 
-
-
-
3.25-3.45
Conchoidal, Uneven
Good on {110}
6.5
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Cordierite and Kornerupine Chemical Formula

While comparing Cordierite and Kornerupine 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 Kornerupine chemical formula.

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Cordierite and Kornerupine Specific Gravity

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