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Sylvite
Sylvite

Pollucite
Pollucite



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Sylvite
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Pollucite

Sylvite and Pollucite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
1.993
Uneven
Perfect on [100], [010], [001]
2.5
KCl
 
Brittle
Readily soluble in HF
-
2.86-2.94
Conchoidal, Uneven
None observed
6.5-7
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Sylvite and Pollucite Chemical Formula

While comparing Sylvite 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 Sylvite and Pollucite chemical formula.

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Sylvite and Pollucite Specific Gravity

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