Pyrophyllite and Antigorite Physical Properties

Pyrophyllite

Antigorite

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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

2.65-2.902.58-2.80

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

{001} Perfect

{001} Good

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

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Pyrophyllite and Antigorite Chemical Formula

While comparing Pyrophyllite and Antigorite 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 Antigorite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

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Pyrophyllite and Antigorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.