Bastnasite and Thomsonite Physical Properties
Specific Gravity
4.95-5.0
2.25-2.40
Cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
perfect on {010}; good on {100}
Chemical Composition
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bastnasite and Thomsonite Chemical Formula
While comparing Bastnasite and Thomsonite 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 Thomsonite chemical formula.
- Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bastnasite and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bastnasite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bastnasite and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Bastnasite is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.