Verdelite and Tantalite Physical Properties

Verdelite

Tantalite

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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.

5.2

Subconchoidal, Conchoidal

Good in one direction

6-6.5

(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Verdelite and Tantalite Chemical Formula

While comparing Verdelite and Tantalite 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 Tantalite chemical formula.

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Verdelite and Tantalite Specific Gravity

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