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Langbeinite
Langbeinite

Pyrophyllite
Pyrophyllite



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Langbeinite
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Pyrophyllite

Langbeinite and Pyrophyllite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Slowly dissolves in water
-

Durability

-
-

Specific Gravity

-99992.65-2.90
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

None
{001} Perfect

Mohs Hardness

3.5-4-9999
2 10
👆🏻

Chemical Composition

K2Mg2(SO4)3
Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Langbeinite and Pyrophyllite Chemical Formula

While comparing Langbeinite and Pyrophyllite 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 Pyrophyllite chemical formula.

  • Chemical formula of Langbeinite- K2Mg2(SO4)3
  • Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Langbeinite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Langbeinite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.