Study of iron meteorite Sikhote-Alin and extracted iron-nickel phosphides using Moessbauer spectroscopy with high velocity resolution

Comparative study of schreibersite and rhabdite extracted from Sikhote-Alin (IIAB) iron meteorite using Moessbauer spectroscopy, X-ray diffraction and magnetic measurements was carried out. Moessbauer spectra of bulk meteorite sample and extracted phosphides were recorded in 4,096 channels and then presented in 1,024 channels. Differences of the unit cell structure, the Fe, Ni and Co content, the room temperature Moessbauer spectra and Curie temperature for rhabdite and schreibersite were found.