Iron redox reactions in the tourmaline structure: High-temperature treatment of Fe3+-rich schorl

@inproceedings{Filip2012IronRR,
  title={Iron redox reactions in the tourmaline structure: High-temperature treatment of Fe3+-rich schorl},
  author={Jan Filip Karel Filip and Ferdinando Bosi and Milan Novăk and Henrik Skogby and Jiř{\'i} Tu{\vc}ek and Jan {\vC}uda and Manfred Wildner},
  year={2012}
}
We present a detailed study of thermally-driven oxidation and reduction of Fe in the structure of schorl (as the most widespread tourmaline), Fe2+-bearing olenite and fluor-schorl. The principal Fe3+-rich tourmaline investigated in this study is a natural schorl sample from a unique occurrence in peralkaline rocks near Cancrinite Hill, east of Bancroft, southern Ontario. Tourmaline samples were thermally-treated in air and hydrogen at temperatures of 700, 800 and 900 °C to oxidize or reduce the… CONTINUE READING