The location of Fe3+ ions in forsterite (Mg2SiO4) |
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| Authors: | S Zeira SS Hafner |
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| Institution: | University of Marburg, Department of Geosciences, Marburg Germany |
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| Abstract: | The electron spin resonance spectrum of Fe3+ in a single crystal of forsterite was studied. Two distinct patterns of about equal intensities were observed which are due to Fe3+ at two distinct positions with 4a (M1)and4c (M2or Si) symmetry of Pbnm. The assignment of the 4c pattern to Fe3+ ions at the Si position cannot be excluded by symmetry but it is unlikely. The Hamiltonian parameters A and E/D are consistent with the conclusion that Fe3+ in this crystal is disordered over two distinct octahedral positions. |
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