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Pollucite
Pollucite

Pyrope
Pyrope



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Pollucite
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Pyrope

Pollucite and Pyrope Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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
 
-
insoluble in water
-
3.62-3.87
Conchoidal
None
7-7.5
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Pollucite and Pyrope Chemical Formula

While comparing Pollucite and Pyrope 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 Pyrope chemical formula.

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Pollucite and Pyrope Specific Gravity

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