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Cordierite
Cordierite

Magnesite
Magnesite



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Cordierite
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Magnesite

Cordierite and Magnesite 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
Effervesces in hot HCl
-
2.92-3.12
Conchoidal
[10 1 1] perfect
3.5-4.5
MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Cordierite and Magnesite Chemical Formula

While comparing Cordierite and Magnesite 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 Magnesite chemical formula.

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Cordierite and Magnesite Specific Gravity

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