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Forsterite
Forsterite

Iolite
Iolite



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Forsterite
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Iolite

Forsterite and Iolite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.23-3.26
Conchoidal
Perfect on {010} imperfect on {100}
6.5-7
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
 
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-
-
2.6-2.7
-
3,1
7-7.5
Mg2Al4Si5O18

Forsterite and Iolite Chemical Formula

While comparing Forsterite and Iolite 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 Forsterite and Iolite chemical formula.

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Forsterite and Iolite Specific Gravity

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