Vesuvianite and Pyrophyllite Physical Properties

Vesuvianite

Pyrophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Vesuvianite is virtually insolouble in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.32-3.432.65-2.90

1 7.18

1.5 Fracture

Conchoidal, Brittle

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

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

{001} Perfect

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

Not Available

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

Vesuvianite and Pyrophyllite Chemical Formula

While comparing Vesuvianite 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 Vesuvianite and Pyrophyllite chemical formula.

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

Compare Brown Gemstones

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Vesuvianite and Pyrophyllite Specific Gravity

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