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Chrysoprase
Chrysoprase

Pollucite
Pollucite



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Chrysoprase
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Pollucite

Chrysoprase and Pollucite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Readily soluble in HF

Durability

-
-

Specific Gravity

2.58-2.642.86-2.94
1 7.18
👆🏻

Fracture

-
Conchoidal, Uneven

Cleavage

None
None observed

Mohs Hardness

6.5-76.5-7
2 10
👆🏻

Chemical Composition

SiO2 (with a high level of nickel impurities )
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Chrysoprase and Pollucite Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Pollucite chemical formula.

  • Chemical formula of Chrysoprase- SiO2 (with a high level of nickel impurities )
  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Chrysoprase and Pollucite Specific Gravity

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