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Nepouite
Nepouite

Pollucite
Pollucite



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Nepouite
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Pollucite

Nepouite and Pollucite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Readily soluble in HF

Durability

-
-

Specific Gravity

3.18-3.242.86-2.94
1 7.18
👆🏻

Fracture

-
Conchoidal, Uneven

Cleavage

perfect on {001}
None observed

Mohs Hardness

26.5-7
2 10
👆🏻

Chemical Composition

Ni3(Si2O5)(OH)4
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Nepouite and Pollucite Chemical Formula

While comparing Nepouite 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 Nepouite and Pollucite chemical formula.

  • Chemical formula of Nepouite- Ni3(Si2O5)(OH)4
  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Nepouite and Pollucite Specific Gravity

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