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Edenite
Edenite

Pollucite
Pollucite



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Edenite
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Pollucite

Edenite and Pollucite Physical Properties

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Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
Readily soluble in HF

Durability

-
-

Specific Gravity

3.05-3.372.86-2.94
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal, Uneven

Cleavage

Good on (110)
None observed

Mohs Hardness

5-66.5-7
2 10
👆🏻

Chemical Composition

NaCa2Mg5Si7AlO22(OH)2
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Edenite and Pollucite Chemical Formula

While comparing Edenite 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 Edenite and Pollucite chemical formula.

  • Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Edenite and Pollucite Specific Gravity

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