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Pyrophyllite
Pyrophyllite

Neptunite
Neptunite



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Pyrophyllite
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Neptunite

Pyrophyllite and Neptunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.65-2.90
-
{001} Perfect
-9999
Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Brittle
-
-
3.19-3.23
Conchoidal
{110} good
5-6
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael O’Donoghue , Gems, Sixth Edition (2006)

Pyrophyllite and Neptunite Chemical Formula

While comparing Pyrophyllite and Neptunite 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 Neptunite chemical formula.

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Pyrophyllite and Neptunite Specific Gravity

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