The pyrite-type high-pressure form of FeOOH

@article{Nishi2017ThePH,
  title={The pyrite-type high-pressure form of FeOOH},
  author={Masayuki Nishi and Yasuhiro Kuwayama and Jun Tsuchiya and Taku Tsuchiya},
  journal={Nature},
  year={2017},
  volume={547},
  pages={205-208}
}
Water transported into Earth’s interior by subduction strongly influences dynamics such as volcanism and plate tectonics. Several recent studies have reported hydrous minerals to be stable at pressure and temperature conditions representative of Earth’s deep interior, implying that surface water may be transported as far as the core–mantle boundary. However, the hydrous mineral goethite, α-FeOOH, was recently reported to decompose under the conditions of the middle region of the lower mantle to… 

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