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Cordierite Iolite
Cordierite Iolite

Forsterite
Forsterite



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Cordierite Iolite
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Forsterite

Cordierite Iolite and Forsterite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.56-2.66
Uneven, ConchoidalWalter Schumann
Distinct
7-7.5
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
 
-
-
-
3.23-3.26
Conchoidal
Perfect on {010} imperfect on {100}
6.5-7
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Cordierite Iolite and Forsterite Chemical Formula

While comparing Cordierite Iolite and Forsterite 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 Forsterite chemical formula.

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Cordierite Iolite and Forsterite Specific Gravity

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