Pyrophyllite and Augelite Physical Properties

Pyrophyllite

Augelite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.902.70-2.75

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{001} Perfect

From the Greek for luster, for its pearly luster on the cleavage.

1.7 Mohs Hardness

Not Available4.5-5

2 10

1.8 Chemical Composition

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

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Pyrophyllite and Augelite Chemical Formula

While comparing Pyrophyllite and Augelite 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 Pyrophyllite and Augelite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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Pyrophyllite Vs Sard

Pyrophyllite Vs Sardonyx

Pyrophyllite and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.