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Pyrophyllite
Pyrophyllite

Rossmanite
Rossmanite



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Pyrophyllite
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Rossmanite

Pyrophyllite and Rossmanite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.65-2.903
Amber
1 7.18
1.5 Fracture
Gemstones (2009), Flexible Flexible fragments.
Brittle, Metallic
1.6 Cleavage
{001} Perfect
None
1.7 Mohs Hardness
Not AvailableNot Available
Amber
2 10
1.8 Chemical Composition
Al 2Si 4O 10(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Pyrophyllite and Rossmanite Chemical Formula

While comparing Pyrophyllite and Rossmanite 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 Rossmanite 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 Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Pyrophyllite and Rossmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Rossmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Rossmanite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3 whereas that of Rossmanite is 3.