Pyrophyllite and Epidote Physical Properties

Pyrophyllite

Epidote

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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

2.65-2.903.25-3.50

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Fibrous

1.6 Cleavage

{001} Perfect

{001} perfect and {100} imperfect

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

CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pyrophyllite and Epidote Chemical Formula

While comparing Pyrophyllite and Epidote 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 Epidote chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Pyrophyllite Vs Sardonyx

Pyrophyllite Vs Sard

Pyrophyllite Vs Scorzalite

Pyrophyllite and Epidote Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Epidote Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Epidote Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.25-3.50 whereas that of Epidote is 3.25-3.50.