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Cordierite
Cordierite

Gaylussite
Gaylussite



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Cordierite
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Gaylussite

Cordierite and Gaylussite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
decomposes in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.57-2.66
1.93-1.99
1.5 Fracture
Subconchoidal, Conchoidal, Brittle
Conchoidal, Conchoidal, Brittle
1.6 Cleavage
Fair on {100}, poor on {001} and {010}
perfect [110]
1.7 Mohs Hardness
7-7.5
2.5
1.8 Chemical Composition
Mg2Al4Si5O18
Na2Ca(CO3)2•5(H2O)

Cordierite and Gaylussite Chemical Formula

While comparing Cordierite and Gaylussite 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 Gaylussite chemical formula.

  • Chemical formula of Cordierite- Mg2Al4Si5O18
  • Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)

Cordierite and Gaylussite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Gaylussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Gaylussite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 1.93-1.99 whereas that of Gaylussite is 1.93-1.99.