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Halite
Halite

Alunite
Alunite



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Halite
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Alunite

Halite and Alunite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Water-soluble
-
2.17
Conchoidal
Perfect {001}, three directions cubic
2.0-2.5
NaCl
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Halite and Alunite Chemical Formula

While comparing Halite and Alunite 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 Halite and Alunite chemical formula.

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Halite and Alunite Specific Gravity

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