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Alunite
Alunite

Phlogopite
Phlogopite



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Alunite
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Phlogopite

Alunite and Phlogopite 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
 
Tough
-
-
2.78-2.85
Uneven
Perfect basal (001)
2-2.5
KMg3(Si3Al)O10(F,OH)2

Alunite and Phlogopite Chemical Formula

While comparing Alunite and Phlogopite 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 Phlogopite chemical formula.

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Alunite and Phlogopite Specific Gravity

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