Tantalite and Spodumene Physical Properties

Tantalite

Spodumene

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.23.15-3.21

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

Good in one direction

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

1.7 Mohs Hardness

6-6.56-7

2 10

1.8 Chemical Composition

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

LiAlSi₂O₆

Tantalite and Spodumene Chemical Formula

While comparing Tantalite and Spodumene 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 Spodumene chemical formula.

Chemical formula of Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Spodumene- LiAlSi₂O₆

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Tantalite and Spodumene Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tantalite and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tantalite and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Tantalite is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.