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Pyrophyllite
Pyrophyllite

Tantalite
Tantalite



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Pyrophyllite
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Tantalite

Pyrophyllite and Tantalite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.65-2.905.2
1 7.18
👆🏻

Fracture

-
Subconchoidal, Conchoidal

Cleavage

{001} Perfect
Good in one direction

Mohs Hardness

-99996-6.5
2 10
👆🏻

Chemical Composition

Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Pyrophyllite and Tantalite Chemical Formula

While comparing Pyrophyllite and Tantalite 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 Tantalite 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 Tantalite- (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Pyrophyllite and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 5.2 whereas that of Tantalite is 5.2.