Rossmanite and Pyrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3
2.65-2.90
Fracture
Brittle, Metallic
Gemstones (2009), Flexible Flexible fragments.
Cleavage
None
{001} Perfect
Mohs Hardness
Not Available
Not Available
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rossmanite and Pyrophyllite Chemical Formula
While comparing Rossmanite and Pyrophyllite 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 Rossmanite and Pyrophyllite chemical formula.
- Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rossmanite and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.