Pyrophyllite and Vivianite Physical Properties

Pyrophyllite

Vivianite

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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

2.65-2.902.64-2.70

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

(e.g. graphite).

1.6 Cleavage

{001} Perfect

{010} Perfect

1.7 Mohs Hardness

Not AvailableNot Available

2 10

1.8 Chemical Composition

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

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Pyrophyllite and Vivianite Chemical Formula

While comparing Pyrophyllite and Vivianite 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 Vivianite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

Pyrophyllite Vs Scorzalite

Pyrophyllite Vs Sard

Pyrophyllite Vs Sardonyx

Pyrophyllite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.