Tantalite and Beryllonite Physical Properties

Tantalite

Beryllonite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

5.22.79-2.87

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal

Cleavage

Good in one direction

{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces

Mohs Hardness

6-6.55.5-6

2 10

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Chemical Composition

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

NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Tantalite and Beryllonite Chemical Formula

While comparing Tantalite and Beryllonite 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 Beryllonite chemical formula.

Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

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Tantalite and Beryllonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tantalite and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tantalite and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of Tantalite is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.