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Grandidierite
Grandidierite

Iolite
Iolite



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Grandidierite
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Iolite

Grandidierite and Iolite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.85-3.00
Uneven
Perfect
7.5
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
 
-
-
-
2.6-2.7
-
3,1
7-7.5
Mg2Al4Si5O18

Grandidierite and Iolite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Iolite chemical formula.

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Grandidierite and Iolite Specific Gravity

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