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Pollucite
Pollucite

Jet
Jet



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Pollucite
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Jet

Pollucite and Jet Physical Properties

Jet
Jet
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Physical Properties

Tenacity

Brittle
-

Solubility

Readily soluble in HF
-

Durability

-
-

Specific Gravity

2.86-2.941.19-1.35
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
ConchoidalWalter Schumann

Cleavage

None observed
None

Mohs Hardness

6.5-72.5-4
2 10
👆🏻

Chemical Composition

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

Pollucite and Jet Chemical Formula

While comparing Pollucite and Jet 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 Jet 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 Jet- C

Pollucite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Jet Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 1.19-1.35 whereas that of Jet is 1.19-1.35.