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Alunite
Alunite

Edenite
Edenite



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Alunite
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Edenite

Alunite and Edenite 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
-
-
3.05-3.37
Conchoidal
Good on (110)
5-6
NaCa2Mg5Si7AlO22(OH)2

Alunite and Edenite Chemical Formula

While comparing Alunite and Edenite 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 Edenite chemical formula.

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Alunite and Edenite Specific Gravity

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