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American Mineralogist; May 2004; v. 89; no. 5-6; p. 807-811
© 2004 Mineralogical Society of America
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The flux growth of magnesium silicate perovskite single crystals

David P. Dobson1,* and Steven D. Jacobsen2,{dagger}

1 Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, U. K.
2 Bayerisches Geoinstitut, Universität Bayreuth, D-94550 Bayreuth, Germany

Correspondence: * E-mail: d.dobson{at}ucl.ac.uk

We present a flux-growth method for growing large, strain- and inclusion-free single crystals of perovskite-type (Mg, Fe, Al)(Si, Al)O3 in a multi-anvil apparatus. Molten NaCl is used as the flux and the temperature is cycled at ~25 GPa to enhance grain growth. In this way, we have synthesized highquality subhedral perovskite crystals in excess of 300 micrometers of pure Mg, or Fe- and Al-bearing compositions with minimal Na-contamination from the flux. Single-crystal structure refinement of the MgSiO3-perovskite demonstrates the quality of the crystals.




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