Non-stoichiometric magnetite and maghemite in the mature teeth of the chitonAcanthopleura hirtosa

St. Pierre, T. G. ; Evans, L. A. ; Webb, J.
Springer
Published 1992
ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Mature radula pieces from the chitonAcanthopleura hirtosa were studied using Mössbauer spectroscopy. The magnetite present in the radulae was found to have a distribution of Verwey transition temperatures in the range 85–100K. It was deduced that the magnetite was non-stoichiometric with an average formula Fe2.98O3. About 10% of the Fe in the radulae was in the form of maghemite and about 19% was in the form of paramagnetic or superparamagnetic phases.
Type of Medium:
Electronic Resource
URL: