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Alunite
Alunite

Shigaite
Shigaite



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Alunite
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Shigaite

Alunite and Shigaite 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
 
Moderately flexible
-
-
2.32
-
Perfect on {0001}
2
Pb6Cu3BiS4

Alunite and Shigaite Chemical Formula

While comparing Alunite and Shigaite 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 Shigaite chemical formula.

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Alunite and Shigaite Specific Gravity

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