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Augelite
Augelite

Jet
Jet



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Augelite
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Jet

Augelite and Jet Physical Properties

Jet
Jet
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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.70-2.751.19-1.35
1 7.18
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Fracture

Conchoidal
ConchoidalWalter Schumann

Cleavage

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

Mohs Hardness

4.5-52.5-4
2 10
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Chemical Composition

Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)
C

Augelite and Jet Chemical Formula

While comparing Augelite and Jet 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 Augelite and Jet chemical formula.

  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Jet- C

Augelite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Jet Optical Properties during the identification of gemstone. Specific gravity of Augelite is 1.19-1.35 whereas that of Jet is 1.19-1.35.