THE DISTRIBUTION OF CHROMIUM IN CHROMIAN PUMPELLYITE FROM SARANI, URALS, RUSSIA: A TOF NEUTRON AND X-RAY RIETVELD STUDY

@article{Nagashima2007THEDO,
  title={THE DISTRIBUTION OF CHROMIUM IN CHROMIAN PUMPELLYITE FROM SARANI, URALS, RUSSIA: A TOF NEUTRON AND X-RAY RIETVELD STUDY},
  author={Mariko Nagashima and Masahide Akasaka},
  journal={Canadian Mineralogist},
  year={2007},
  volume={45},
  pages={837-846}
}
The crystal structure of chromian pumpellyite from Sarani in the Russian Urals was refined using complementary time-of-flight neutron and X-ray Rietveld methods, to investigate the crystal-chemical behavior of chromium in pumpellyite. The average chemical composition of the sample is CaO 22.06 ± 0.39, MgO 3.95 ± 0.37, Cr 2 O 3 14.39 ± 1.19, Al 2 O 3 16.71 ± 0.79, total Fe 2 O 3 0.15 ± 0.08, and SiO 2 35.73 ± 0.63 wt.% ( n = 38). The occupancy of Mg at the octahedral X site refined with the… 

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