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Smaragdite
Smaragdite

Pollucite
Pollucite



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Smaragdite
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Pollucite

Smaragdite and Pollucite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Readily soluble in HF

Durability

-
-

Specific Gravity

3.24-3.502.86-2.94
1 7.18
👆🏻

Fracture

-
Conchoidal, Uneven

Cleavage

None
None observed

Mohs Hardness

5.56.5-7
2 10
👆🏻

Chemical Composition

NaCa2(Al,Fe)3Si6O18(OH)4
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Smaragdite and Pollucite Chemical Formula

While comparing Smaragdite 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 Smaragdite and Pollucite chemical formula.

  • Chemical formula of Smaragdite- NaCa2(Al,Fe)3Si6O18(OH)4
  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Smaragdite and Pollucite Specific Gravity

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