Allanite and Tantalite Physical Properties

Allanite

Tantalite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.40-4.205.2

1 7.18

1.5 Fracture

Not Available

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

Good in one direction

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

Not Available

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

Allanite and Tantalite Chemical Formula

While comparing Allanite 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 Allanite and Tantalite chemical formula.

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

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Allanite and Tantalite Specific Gravity

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