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Alunite
Alunite

Langbeinite
Langbeinite



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Alunite
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Langbeinite

Alunite and Langbeinite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
Slowly dissolves in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.6-2.9
Not Available
1.5 Fracture
Conchoidal, Uneven
Conchoidal, Brittle
1.6 Cleavage
On {0001}, perfect
None
1.7 Mohs Hardness
3.5-4
3.5-4
1.8 Chemical Composition
KAl3(SO4)2(OH)6
Not Available

Alunite and Langbeinite Chemical Formula

While comparing Alunite and Langbeinite 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 Langbeinite chemical formula.

  • Chemical formula of Alunite- KAl3(SO4)2(OH)6
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Alunite and Langbeinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Alunite is Not Available whereas that of Langbeinite is Not Available.