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Pollucite
Pollucite

Langbeinite
Langbeinite



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Pollucite
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Langbeinite

Pollucite and Langbeinite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Readily soluble in HF
Slowly dissolves in water

Durability

-
-

Specific Gravity

2.86-2.94-9999
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Conchoidal

Cleavage

None observed
None

Mohs Hardness

6.5-73.5-4
2 10
👆🏻

Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
K2Mg2(SO4)3

Pollucite and Langbeinite Chemical Formula

While comparing Pollucite 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 Pollucite and Langbeinite chemical formula.

  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Langbeinite- K2Mg2(SO4)3

Pollucite and Langbeinite Specific Gravity

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