Abstract
Mossbauer spectra of brucite mineral from Shanxi in China were measured over a temperature range from 12 K to 500 K. Each spectrum consists of a dominant ferrous doublet and an additional ferric doublet. The most interesting result is the temperature dependence of the line broadenings atT<400 K, with the negative velocity line always more broadened than the positive one. A possible explanation of these systematic broadenings is the presence of a small magnetic perturbation in brucite.
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