Spodumene and Pyrophyllite Physical Properties

Spodumene

Pyrophyllite

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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

3.15-3.212.65-2.90

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

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

{001} Perfect

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

LiAlSi₂O₆

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Spodumene and Pyrophyllite Chemical Formula

While comparing Spodumene and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Spodumene and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spodumene and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.