Forsterite and Tantalite Physical Properties

Forsterite

Tantalite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.23-3.265.2

1 7.18

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Fracture

Conchoidal

Subconchoidal, Conchoidal

Cleavage

Perfect on {010} imperfect on {100}

Good in one direction

Mohs Hardness

6.5-76-6.5

2 10

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Chemical Composition

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Forsterite and Tantalite Chemical Formula

While comparing Forsterite 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 Forsterite and Tantalite chemical formula.

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

Compare Green Gemstones

Forsterite Vs Grossular

Forsterite Vs Hayne

Forsterite Vs Hemimorphite

Forsterite and Tantalite Specific Gravity

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