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Plumbogummite
Plumbogummite

Augelite
Augelite



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Plumbogummite
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Augelite

Plumbogummite and Augelite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

4.0142.70-2.75
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Conchoidal

Cleavage

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

Mohs Hardness

4-54.5-5
2 10
👆🏻

Chemical Composition

PbAl3(PO4)(SO4)(OH)6
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Plumbogummite and Augelite Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Augelite chemical formula.

  • Chemical formula of Plumbogummite- PbAl3(PO4)(SO4)(OH)6
  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Plumbogummite and Augelite Specific Gravity

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