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Alunite
Alunite

Vesuvianite
Vesuvianite



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Alunite
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Vesuvianite

Alunite and Vesuvianite 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
 
-
-
-
3.32-3.43
Conchoidal
Poor on {110} and {100} very poor on {001}
6-7
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4

Alunite and Vesuvianite Chemical Formula

While comparing Alunite and Vesuvianite 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 Vesuvianite chemical formula.

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Alunite and Vesuvianite Specific Gravity

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