Bustamite and Bastnasite Physical Properties
Solubility
Partly soluble in HCl.
-
Specific Gravity
3.32-3.43
4.95-5.0
Fracture
Conchoidal
Uneven
Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Imperfect to indistinct on {10 1 0}, parting on {0001}
Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bustamite and Bastnasite Chemical Formula
While comparing Bustamite and Bastnasite 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 Bustamite and Bastnasite chemical formula.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bustamite and Bastnasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bustamite and Bastnasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Bastnasite Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 4.95-5.0 whereas that of Bastnasite is 4.95-5.0.