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Cordierite Iolite
Cordierite Iolite

Goethite
Goethite



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Cordierite Iolite
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Goethite

Cordierite Iolite and Goethite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
HCl soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.56-2.664.27-4.29
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
1.6 Cleavage
Not Available
Perfect {010}
1.7 Mohs Hardness
7-7.55-5.5
Amber
2 10
1.8 Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
FeO(OH)Arthur Thomas , Gemstones (2009)

Cordierite Iolite and Goethite Chemical Formula

While comparing Cordierite Iolite and Goethite 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 Iolite and Goethite chemical formula.

  • Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

Cordierite Iolite and Goethite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite Iolite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Iolite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Cordierite Iolite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.