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Langbeinite
Langbeinite

Alunite
Alunite



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Langbeinite
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Alunite

Langbeinite and Alunite Physical Properties

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

Langbeinite and Alunite Chemical Formula

While comparing Langbeinite 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 Langbeinite and Alunite chemical formula.

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  • Chemical formula of Alunite- KAl3(SO4)2(OH)6

Langbeinite and Alunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Langbeinite and Alunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Alunite Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 2.6-2.9 whereas that of Alunite is 2.6-2.9.

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