Pyrophyllite and Vesuvianite Physical Properties

Pyrophyllite

Vesuvianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Vesuvianite is virtually insolouble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.65-2.903.32-3.43

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Conchoidal, Brittle

1.6 Cleavage

{001} Perfect

Poor on {110} and {100} very poor on {001}

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

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

Not Available

Pyrophyllite and Vesuvianite Chemical Formula

While comparing Pyrophyllite and Vesuvianite 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 Vesuvianite 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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Pyrophyllite and Vesuvianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Vesuvianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Vesuvianite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.32-3.43 whereas that of Vesuvianite is 3.32-3.43.