Tantalite and Andalusite Physical Properties

Tantalite

Andalusite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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

3.05-3.21

Uneven, Subconchoidal, Splintery

Good on {110}, poor on {100}

7.5

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Tantalite and Andalusite Chemical Formula

While comparing Tantalite and Andalusite 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 Tantalite and Andalusite chemical formula.

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Tantalite and Andalusite Specific Gravity

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