Abstract
In annealed, synthetic samples of Mg2-xFexSiO4 the Mg2+ and Fe2+ ions are not randomly distributed. With 0.1 ≦ x ≦ 0.6 the larger Fe2+ ions replace preferentially Mg2+ in octahedral sites of symmetry m and the lattice dimensions do not change in this range. Quenching tends to yield samples with more randomly distributed cations and the lattice dimensions approach those of natural olivines.
Received: 1977-11-9
Published Online: 2014-6-2
Published in Print: 1978-7-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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