Mineral fluorapatite. Differences between infrared absorption spectra of powders and faceted surface planes.
D001031:Apatites; D005461:Fluorine; D007259:Infrared Rays; D011208:Powders; D013057:Spectrum Analysis; D013499:Surface Properties
D001031:Apatites; D011208:Powders; D005461:Fluorine