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Langbeinite
Langbeinite

Cinnabar
Cinnabar



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Langbeinite
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Cinnabar

Langbeinite and Cinnabar Physical Properties

Physical Properties

Tenacity

Brittle
Slightly sectile

Solubility

Slowly dissolves in water
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)

Durability

-
-

Specific Gravity

-99992
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

None
Prismatic {10 1 0}, perfect

Mohs Hardness

3.5-42-2.5
2 10
👆🏻

Chemical Composition

K2Mg2(SO4)3
HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Langbeinite and Cinnabar Chemical Formula

While comparing Langbeinite and Cinnabar 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 Cinnabar chemical formula.

  • Chemical formula of Langbeinite- K2Mg2(SO4)3
  • Chemical formula of Cinnabar- HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Langbeinite and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Langbeinite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 2 whereas that of Cinnabar is 2.