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Pollucite
Pollucite

Erythrite
Erythrite



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Pollucite
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Erythrite

Pollucite and Erythrite Physical Properties

Physical Properties

Tenacity

Brittle
Sectile

Solubility

Readily soluble in HF
-

Durability

-
-

Specific Gravity

2.86-2.943.06
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Sectile

Cleavage

None observed
Perfect on {010}; poor on {100} and { 1 02}.

Mohs Hardness

6.5-7-9999
2 10
👆🏻

Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Co3(AsO4)2•8(H2O)

Pollucite and Erythrite Chemical Formula

While comparing Pollucite and Erythrite 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 Erythrite 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 Erythrite- Co3(AsO4)2•8(H2O)

Pollucite and Erythrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.06 whereas that of Erythrite is 3.06.