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Richterite
Richterite

Alunite
Alunite



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Richterite
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Alunite

Richterite and Alunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.0-3.5
Uneven
Perfect
5-6
Na(CaNa)(Mg,Fe++)5(Si8O22)(OH)2
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Richterite and Alunite Chemical Formula

While comparing Richterite 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 Richterite and Alunite chemical formula.

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Richterite and Alunite Specific Gravity

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