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Cordierite
Cordierite

Idocrase
Idocrase



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Cordierite
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Idocrase

Cordierite and Idocrase Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.57-2.66-9999
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
-

Cleavage

Fair on {100}, poor on {001} and {010}
Indiscernible

Mohs Hardness

7-7.5-9999
2 10
👆🏻

Chemical Composition

Mg2Al4Si5O18
Ca10(Mg,Fe)2(Si2O7)2(SiO4)2O(OH)2

Cordierite and Idocrase Chemical Formula

While comparing Cordierite and Idocrase 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 Idocrase chemical formula.

  • Chemical formula of Cordierite- Mg2Al4Si5O18
  • Chemical formula of Idocrase- Ca10(Mg,Fe)2(Si2O7)2(SiO4)2O(OH)2

Cordierite and Idocrase Specific Gravity

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