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Annabergite
Annabergite

Pollucite
Pollucite



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Annabergite
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Pollucite

Annabergite and Pollucite Physical Properties

Physical Properties

Tenacity

Sectile
Brittle

Solubility

-
Readily soluble in HF

Durability

-
-

Specific Gravity

3.072.86-2.94
1 7.18
👆🏻

Fracture

-
Conchoidal, Uneven

Cleavage

Perfect on {010}, indistinct on {100} and {102}
None observed

Mohs Hardness

26.5-7
2 10
👆🏻

Chemical Composition

Ni3(AsO4)2•8(H2O)
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Annabergite and Pollucite Chemical Formula

While comparing Annabergite 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 Annabergite and Pollucite chemical formula.

  • Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Annabergite and Pollucite Specific Gravity

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