Emerald and Tantalite Physical Properties

Emerald

Tantalite

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Physical Properties

Tenacity

Solubility

Durability

Hard

Specific Gravity

2.67-2.785.2

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Subconchoidal, Conchoidal

Cleavage

Imperfect on the [0001]

Good in one direction

Mohs Hardness

7.5-86-6.5

2 10

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Chemical Composition

Be₃Al₂SiO₆

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

Emerald and Tantalite Chemical Formula

While comparing Emerald 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 Emerald and Tantalite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

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Emerald and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 5.2 whereas that of Tantalite is 5.2.