Rutile and Spodumene Physical Properties

Rutile

Spodumene

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Insoluble in acids

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.303.15-3.21

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Subconchoidal, Gemstones (2009)

1.6 Cleavage

{110} good, 100 moderate, parting on {092} and {011}

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

1.7 Mohs Hardness

6-6.56-7

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

LiAlSi₂O₆

Rutile and Spodumene Chemical Formula

While comparing Rutile 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 Rutile and Spodumene chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Spodumene- LiAlSi₂O₆

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Rutile and Spodumene Specific Gravity

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