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Carnallite
Carnallite

Pollucite
Pollucite



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Carnallite
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Pollucite

Carnallite and Pollucite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

Soluble
Readily soluble in HF

Durability

-
-

Specific Gravity

1.62.86-2.94
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal, Uneven

Cleavage

None
None observed

Mohs Hardness

2.56.5-7
2 10
👆🏻

Chemical Composition

KMgCl3•6(H2O)
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Carnallite and Pollucite Chemical Formula

While comparing Carnallite and Pollucite 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 Carnallite and Pollucite chemical formula.

  • Chemical formula of Carnallite- KMgCl3•6(H2O)
  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Carnallite and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnallite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnallite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Carnallite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.