Brookite and Spodumene Physical Properties

Brookite

Spodumene

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.143.15-3.21

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

Poor on {120}, in traces on {001}

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

1.7 Mohs Hardness

5.5-66-7

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

LiAlSi₂O₆

Brookite and Spodumene Chemical Formula

While comparing Brookite 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 Brookite and Spodumene chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Spodumene- LiAlSi₂O₆

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Brookite and Spodumene Specific Gravity

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