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Friedelite
Friedelite

Alunite
Alunite



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Friedelite
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Alunite

Friedelite and Alunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.06-3.19
Uneven
{010} Perfect
4-5
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
 
Brittle
Soluble
-
2.6-2.9
Conchoidal, Uneven
On {0001}, perfect
3.5-4
KAl3(SO4)2(OH)6

Friedelite and Alunite Chemical Formula

While comparing Friedelite and Alunite 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 Friedelite and Alunite chemical formula.

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Friedelite and Alunite Specific Gravity

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