Pyrite, as in FeS2 is not ferromagnetic but diamagnetic. Upon heating pyrite oxidizes and produces magnetic products (oxides). In contrast, CoS2 with the pyrite structure is ferromagnetic. Anyway, pyrite is rarely found in meteorites. ------------------------------------------------------------------------ -------------------------- Dr. Laurence A.J. Garvie School of Earth and Space Exploration (SESE) Arizona State University Tempe AZ 85287-1404 USA
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