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Cordierite
Cordierite

Turquoise
Turquoise



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Cordierite
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Turquoise

Cordierite and Turquoise Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.57-2.66
2.30-2.90
1.5 Fracture
Subconchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
1.6 Cleavage
Fair on {100}, poor on {001} and {010}
Good to perfect_usually N/A
1.7 Mohs Hardness
7-7.5
5-6
1.8 Chemical Composition
Mg2Al4Si5O18
CuAl6(PO4)4(OH)8 • 4H2O

Cordierite and Turquoise Chemical Formula

While comparing Cordierite and Turquoise 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 Turquoise chemical formula.

  • Chemical formula of Cordierite- Mg2Al4Si5O18
  • Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O

Cordierite and Turquoise Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.