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Alunite
Alunite

Phosgenite
Phosgenite



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Alunite
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Phosgenite

Alunite and Phosgenite 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
 
Sectile
Soluble
-
6.13
Conchoidal
Distinct on {001} and {110}, indistinct on {100}
2-3
Pb 2(CO 3)Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Alunite and Phosgenite Chemical Formula

While comparing Alunite and Phosgenite 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 Phosgenite chemical formula.

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Alunite and Phosgenite Specific Gravity

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