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Leucite
Leucite

Sylvite
Sylvite



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Leucite
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Sylvite

Leucite and Sylvite Physical Properties

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Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

2.45-2.501.993
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

Poor on {110}
Perfect on [100], [010], [001]

Mohs Hardness

5.5-62.5
2 10
👆🏻

Chemical Composition

KAlSi 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
KCl

Leucite and Sylvite Chemical Formula

While comparing Leucite 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 Leucite and Sylvite chemical formula.

  • Chemical formula of Leucite- KAlSi 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Sylvite- KCl

Leucite and Sylvite Specific Gravity

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