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Phosgenite
Phosgenite

Iolite
Iolite



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Phosgenite
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Iolite

Phosgenite and Iolite Physical Properties

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Physical Properties

Tenacity

Sectile
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

6.132.6-2.7
1 7.18
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Fracture

Conchoidal
-

Cleavage

Distinct on {001} and {110}, indistinct on {100}
3,1

Mohs Hardness

2-37-7.5
2 10
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Chemical Composition

Pb 2(CO 3)Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Mg2Al4Si5O18

Phosgenite and Iolite Chemical Formula

While comparing Phosgenite 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 Phosgenite and Iolite chemical formula.

  • Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Iolite- Mg2Al4Si5O18

Phosgenite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosgenite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosgenite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Phosgenite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.