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Biotite
Biotite

Langbeinite
Langbeinite



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Biotite
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Langbeinite

Biotite and Langbeinite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2
 
Brittle
Slowly dissolves in water
-
-9999
Conchoidal
None
3.5-4
K2Mg2(SO4)3

Biotite and Langbeinite Chemical Formula

While comparing Biotite 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 Biotite and Langbeinite chemical formula.

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Biotite and Langbeinite Specific Gravity

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