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Pollucite
Pollucite

Richterite
Richterite



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Pollucite
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Richterite

Pollucite and Richterite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Readily soluble in HF
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.86-2.94
3.0-3.5
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Brittle
1.6 Cleavage
None observed
Perfect
1.7 Mohs Hardness
6.5-7
5-6
1.8 Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Not Available

Pollucite and Richterite Chemical Formula

While comparing Pollucite and Richterite 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 Richterite chemical formula.

  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
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Pollucite and Richterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Richterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Richterite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.0-3.5 whereas that of Richterite is 3.0-3.5.