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Pollucite
Pollucite

Anorthite
Anorthite



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Pollucite
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Pollucite and Anorthite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Readily soluble in HF
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.86-2.94
2.77
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
None observed
Perfect [001] good [010] poor [110]
1.7 Mohs Hardness
6.5-7
6-6.5
1.8 Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Pollucite and Anorthite Chemical Formula

While comparing Pollucite and Anorthite 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 Anorthite 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 Anorthite- CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Pollucite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.77 whereas that of Anorthite is 2.77.