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Iolite
Iolite

Caledonite
Caledonite



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Iolite
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Caledonite

Iolite and Caledonite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.6-2.7
-
3,1
7-7.5
Mg2Al4Si5O18
 
Brittle
-
-
5.6-5.76
Uneven
[001] perfect; [100] distinct
2.5-3
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Iolite and Caledonite Chemical Formula

While comparing Iolite and Caledonite 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 Iolite and Caledonite chemical formula.

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Iolite and Caledonite Specific Gravity

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