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Iolite
Iolite

Sylvite
Sylvite



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Iolite
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Sylvite

Iolite and Sylvite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.6-2.71.993
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

3,1
Perfect on [100], [010], [001]

Mohs Hardness

7-7.52.5
2 10
👆🏻

Chemical Composition

Mg2Al4Si5O18
KCl

Iolite and Sylvite Chemical Formula

While comparing Iolite and Sylvite 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 Sylvite chemical formula.

  • Chemical formula of Iolite- Mg2Al4Si5O18
  • Chemical formula of Sylvite- KCl

Iolite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 1.993 whereas that of Sylvite is 1.993.