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Alunite
Alunite

Carnallite
Carnallite



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Alunite
X
Carnallite

Alunite and Carnallite Physical Properties

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
 
-
Soluble
-
1.6
Conchoidal
None
2.5
KMgCl3•6(H2O)

Alunite and Carnallite Chemical Formula

While comparing Alunite and Carnallite 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 Carnallite chemical formula.

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Alunite and Carnallite Specific Gravity

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