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Hackmanite
Hackmanite

Alunite
Alunite



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Hackmanite
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Alunite

Hackmanite and Alunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.27-2.33
-
Perfect
5.5-6
Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Hackmanite and Alunite Chemical Formula

While comparing Hackmanite 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 Hackmanite and Alunite chemical formula.

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Hackmanite and Alunite Specific Gravity

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