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Alunite
Alunite

Chlorastrolite
Chlorastrolite



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Alunite
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Chlorastrolite

Alunite and Chlorastrolite 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
 
-
-
-
3.1-3.5
Granular
None
5-6
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

Alunite and Chlorastrolite Chemical Formula

While comparing Alunite and Chlorastrolite 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 Chlorastrolite chemical formula.

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Alunite and Chlorastrolite Specific Gravity

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