Pearl and Pyrophyllite Physical Properties

Pearl

Pyrophyllite

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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

2.60-2.852.65-2.90

1 7.18

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

none

{001} Perfect

1.7 Mohs Hardness

2.5-4.5Not Available

2 10

1.8 Chemical Composition

Not Available

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

Pearl and Pyrophyllite Chemical Formula

While comparing Pearl 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 Pearl and Pyrophyllite chemical formula.

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

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Pearl and Pyrophyllite Specific Gravity

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