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Pyrophyllite
Pyrophyllite

Fayalite
Fayalite



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Pyrophyllite
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Fayalite

Pyrophyllite and Fayalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.65-2.90
-
{001} Perfect
-9999
Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
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-
-
4.392
Conchoidal
{010} moderate, {100} imperfect
6.5-7
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Pyrophyllite and Fayalite Chemical Formula

While comparing Pyrophyllite and Fayalite 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 Fayalite chemical formula.

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Pyrophyllite and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite Vs Fayalite during the identification of gemstone. Specific gravity of Pyrophyllite is whereas that of Fayalite is .