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Pollucite
Pollucite

Kainite
Kainite



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Pollucite
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Kainite

Pollucite and Kainite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Readily soluble in HF
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.86-2.94
2.15
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Splintery, Conchoidal, Brittle
1.6 Cleavage
None observed
{001}, perfect
1.7 Mohs Hardness
6.5-7
2.5-3
1.8 Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Not Available

Pollucite and Kainite Chemical Formula

While comparing Pollucite and Kainite 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 Kainite chemical formula.

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

Another important criteria for qualitative analysis of gemstones is Pollucite and Kainite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Kainite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.15 whereas that of Kainite is 2.15.