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Charlesite
Charlesite

Alunite
Alunite



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Charlesite
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Alunite

Charlesite and Alunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
1.79
Irregular/uneven
Perfect on {10bar10}
2.5
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Charlesite and Alunite Chemical Formula

While comparing Charlesite 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 Charlesite and Alunite chemical formula.

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Charlesite and Alunite Specific Gravity

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