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Elbaite
Elbaite

Augelite
Augelite



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Elbaite
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Augelite

Elbaite and Augelite Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.90-3.102.70-2.75
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Conchoidal

Cleavage

Poor/indistinct on {1120} and {1011}
From the Greek for luster, for its pearly luster on the cleavage.

Mohs Hardness

74.5-5
2 10
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Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Elbaite and Augelite Chemical Formula

While comparing Elbaite 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 Elbaite and Augelite chemical formula.

  • Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Elbaite and Augelite Specific Gravity

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