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Peridot
Peridot

Pollucite
Pollucite



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Peridot
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Pollucite

Peridot and Pollucite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.54-1.55
Conchoidal
Poor
6.5-7
(Mg,Fe)2SiO4
 
Brittle
Readily soluble in HF
-
2.86-2.94
Conchoidal, Uneven
None observed
6.5-7
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Peridot and Pollucite Chemical Formula

While comparing Peridot 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 Peridot and Pollucite chemical formula.

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Peridot and Pollucite Specific Gravity

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