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Alunite
Alunite

Sylvite
Sylvite



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Alunite
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Sylvite

Alunite and Sylvite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6
 
Brittle
Soluble
-
1.993
Uneven
Perfect on [100], [010], [001]
2.5
KCl

Alunite and Sylvite Chemical Formula

While comparing Alunite 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 Alunite and Sylvite chemical formula.

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Alunite and Sylvite Specific Gravity

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