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Alunite
Alunite

Andesine
Andesine



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Alunite
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Andesine

Alunite and Andesine 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
-
-
2.65-2.69
Uneven, Conchoidal
Perfect on {001}, good on {010}
6-6.5
(Na,Ca)Al1-2Si3-2O8

Alunite and Andesine Chemical Formula

While comparing Alunite and Andesine 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 Andesine chemical formula.

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Alunite and Andesine Specific Gravity

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