Spodumene and Phenakite Physical Properties

Spodumene

Phenakite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.212.90-2.98

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

1.6 Cleavage

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

Distinct on {11 2 0}, imperfect on {10 1 1}

1.7 Mohs Hardness

6-77.5-8

2 10

1.8 Chemical Composition

LiAlSi₂O₆

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Spodumene and Phenakite Chemical Formula

While comparing Spodumene and Phenakite 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 Phenakite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Spodumene and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.