Spodumene and Fayalite Physical Properties

Spodumene

Fayalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.214.392

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

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

{010} moderate, {100} imperfect

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

LiAlSi₂O₆

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

Spodumene and Fayalite Chemical Formula

While comparing Spodumene and Fayalite 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 Spodumene and Fayalite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Spodumene and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 4.392 whereas that of Fayalite is 4.392.