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Pyrophyllite
Pyrophyllite

Nepheline
Nepheline



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Pyrophyllite
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Nepheline

Pyrophyllite and Nepheline 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
 
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-
-
2.55-2.65
Subconchoidal, Conchoidal
[1010] Poor
5-6
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Pyrophyllite and Nepheline Chemical Formula

While comparing Pyrophyllite and Nepheline 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 Nepheline chemical formula.

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Pyrophyllite and Nepheline Specific Gravity

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