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Kainite
Kainite

Pollucite
Pollucite



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Kainite
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Pollucite

Kainite and Pollucite Physical Properties

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Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
Readily soluble in HF

Durability

-
-

Specific Gravity

2.152.86-2.94
1 7.18
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Fracture

Splintery, Conchoidal
Conchoidal, Uneven

Cleavage

{001}, perfect
None observed

Mohs Hardness

2.5-36.5-7
2 10
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Chemical Composition

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

Kainite and Pollucite Chemical Formula

While comparing Kainite 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 Kainite and Pollucite chemical formula.

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

Kainite and Pollucite Specific Gravity

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