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Pollucite
Pollucite

Augelite
Augelite



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Pollucite
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Augelite

Pollucite and Augelite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Readily soluble in HF
-

Durability

-
-

Specific Gravity

2.86-2.942.70-2.75
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Conchoidal

Cleavage

None observed
From the Greek for luster, for its pearly luster on the cleavage.

Mohs Hardness

6.5-74.5-5
2 10
👆🏻

Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Pollucite and Augelite Chemical Formula

While comparing Pollucite and Augelite 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 Augelite 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 Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Pollucite and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.