Verdelite and Taaffeite Physical Properties

Verdelite

Taaffeite

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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.

3.60-3.61

Conchoidal

Imperfect/fair/absent

8-8.5

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Verdelite and Taaffeite Chemical Formula

While comparing Verdelite and Taaffeite 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 Taaffeite chemical formula.

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Verdelite and Taaffeite Specific Gravity

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