Verdelite and Augelite Physical Properties

Verdelite

Augelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

2.70-2.75

Conchoidal

From the Greek for luster, for its pearly luster on the cleavage.

4.5-5

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Verdelite and Augelite Chemical Formula

While comparing Verdelite 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 Verdelite and Augelite chemical formula.

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Verdelite and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdelite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdelite Vs Augelite during the identification of gemstone. Specific gravity of Verdelite is whereas that of Augelite is .