Peridot and Pyrophyllite Physical Properties

Peridot

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

1.54-1.552.65-2.90

1 7.18

1.5 Fracture

Conchoidal

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Poor

{001} Perfect

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

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

Peridot and Pyrophyllite Chemical Formula

While comparing Peridot 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 Peridot and Pyrophyllite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Pyrophyllite Specific Gravity

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