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Pyrophyllite
Pyrophyllite

Jet
Jet



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X
Pyrophyllite
X
Jet

Pyrophyllite and Jet Physical Properties

Jet
Jet
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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.65-2.901.19-1.35
1 7.18
👆🏻

Fracture

-
ConchoidalWalter Schumann

Cleavage

{001} Perfect
None

Mohs Hardness

-99992.5-4
2 10
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Chemical Composition

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

Pyrophyllite and Jet Chemical Formula

While comparing Pyrophyllite and Jet 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 Jet chemical formula.

  • Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Jet- C

Pyrophyllite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Jet Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 1.19-1.35 whereas that of Jet is 1.19-1.35.