2021 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 15 - Sep 19, 2021Online
2021 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
Sep 15 - Sep 19, 2021Online
[R2-06]Cation distribution in Fe,Co,Ni-bearing Pentlandite[Presentation award entry]
*Takumi Ichimura1, Makoto Tokuda2, Kazumasa Sugiyama2, Akira Yoshiasa3, Takashi Mikouchi4(1. Tohoku Univ. Eng., 2. IMR, Tohoku Univ., 3. Kumamoto Univ. Sci., 4. Mus. Tokyo Univ.)
Keywords:
Pentlandite,Anomalous X-ray Scattering,Cation distribution
Pentlandite is a sulfide mineral containing elements with adjacent atomic numbers such as Fe, Co and Ni. The cation distributions in the tetrahedral (MT) and octahedral (MO) sites of natural pentlandite Fe4.1Co0.2Ni4.7S8 have been determined by Anomalous X-ray Scattering (AXS). The elemental distribution maps calculated by Fourier transform of the differential structure factors readily indicate the preferred distribution of Ni at the MT site.