Pyrophyllite and Esperite Physical Properties

Pyrophyllite

Esperite

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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

2.65-2.904.28-4.42

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

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

1.6 Cleavage

{001} Perfect

Distinct on [010] and [100] poor on [101]

1.7 Mohs Hardness

Not Available5-5.5

2 10

1.8 Chemical Composition

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

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Pyrophyllite and Esperite Chemical Formula

While comparing Pyrophyllite and Esperite 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 Esperite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

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Pyrophyllite Vs Scorzalite

Pyrophyllite and Esperite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Esperite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 4.28-4.42 whereas that of Esperite is 4.28-4.42.