Bastnasite and Pyrophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.95-5.0
2.65-2.90
Fracture
Uneven
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
{001} Perfect
Mohs Hardness
4-5
Not Available
Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bastnasite and Pyrophyllite Chemical Formula
While comparing Bastnasite 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 Bastnasite and Pyrophyllite chemical formula.
- Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bastnasite and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bastnasite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.