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Cordierite Iolite
Cordierite Iolite

Melanite
Melanite



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Cordierite Iolite
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Melanite

Cordierite Iolite and Melanite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.56-2.663.70-4.10
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
7-7.56.5-7
Amber
2 10
1.8 Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Cordierite Iolite and Melanite Chemical Formula

While comparing Cordierite Iolite and Melanite 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 Melanite chemical formula.

  • Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
  • Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Cordierite Iolite and Melanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite Iolite and Melanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Iolite and Melanite Optical Properties during the identification of gemstone. Specific gravity of Cordierite Iolite is 3.70-4.10 whereas that of Melanite is 3.70-4.10.