Mineralogy and bulk geochemistry of a fumarole at Hverir, Iceland: Analog for acid-sulfate leaching on Mars
George L. Carson, Lindsay J. McHenry, Brian M. Hynek, Barry I. Cameron, and Chase T. Glenister

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The crystal structure and chemistry of natural giniite and implications for Mars
Christopher T. Adcock, Elisabeth M. Hausrath, Elizabeth B. Rampe, Hexiong Yang, and Robert T. Downs

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Solid solution of CaSiO₃ and MgSiO₃ perovskites in the lower mantle: The role of ferrous iron
Feiwu Zhang, Tingting Xiao, and Joshua M.R. Muir

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Secondary ion mass spectrometer analyses for trace elements in glass standards using variably charged silicon ions for normalization
Eric N. Carlson and Richard L. Hervig

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Raman shifts of c-BN as an ideal P-T sensor for studying water-rock interactions in a diamond-anvil cell
Lu’an Ren, Chao Wang, Xiaowei Li, and Renbiao Tao

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Resetting of the U-Pb and Th-Pb systems in altered bastnäsite: Insight from the behavior of Pb at nanoscale
Wei Zhang, Wei Terry Chen, Daniel Harlov, and Jian-Feng Gao

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X-ray diffraction reveals two structural transitions in szomolnokite
Olivia S. Pardo, Vasilije V. Dobrosavljevic, Tyler Perez, Wolfgang Sturhahn, Zhenxian Liu, George R. Rossman, and Jennifer M. Jackson

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Contamination of heterogeneous lower crust in Hannuoba tholeiite: Evidence from in situ trace elements and strontium isotopes of plagioclase
Yu-Tong Su, Zong-Feng Yang, Shuang-Yan Guo, and Pei-Pei Li

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Oxygen fugacity buffering in high-pressure solid media assemblies from IW-6.5 to IW+4.5 and application to the V K-edge oxybarometer
Kevin Righter, Anna L. Butterworth, Zack Gainsforth, Christine E. Jilly-Rehak, Subhayan Roychoudhury, Kayla Iacovino, Richard Rowland, Timmons M. Erickson, Kellye Pando, Daniel K. Ross, David Prendergast, and Andrew J. Westphal

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Trace element partitioning between anhydrite, sulfate melt, and silicate melt
Michael C. Hutchinson, Richard A. Brooker, Jon D. Blundy, John H. Dilles, and Charles T. Lewis

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Chemical reaction between ferropericlase (Mg,Fe)O and water under high pressure-temperature conditions of the deep lower mantle
Ziqiang Yang, Hongsheng Yuan, Lu Liu, Nico Giordano, Yongjin Chen, and Li Zhang

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Composition-dependent thermal equation of state of B2 Fe-Sialloys at high pressure
Shunpei Yokoo, Eric Edmund, Guillaume Morard, Marzena Anna Baron, Silvia Boccato, Frédéric Decremps, Kei Hirose, Anna Pakhomova, and Daniele Antonangeli

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Effects of thermal annealing on water content and δ¹⁸O in zircon
Chuan-Mao Yang, Xiao-Ping Xia, Yu-Ya Gao, Xue Wang, Wan-Feng Zhang, Ze-Xian Cui, Ya-Nan Yang, Qing Yang, and Yi-Gang Xu

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Tourmaline and zircon trace the nature and timing of magmatichydrothermal episodes in granite-related Sn mineralization: Insights from the Libata Sn ore field
Victor I. Vincent, Huan Li, Musa B. Girei, Michael W. Förster, and Vandi D. Kamaunji

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Cation ordering, twinning, and pseudo-symmetry in silicate garnet: The study of a birefringent garnet with orthorhombic structure
Huifang Xu, Shiyun Jin, Seungyeol Lee, and Philip E. Brown

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The occurrence of monoclinic jarosite in natural environments
Anne J. Whitworth, Helen E.A. Brand, Sasha Wilson, Ian E. Grey, Natasha R. Stephen, Yesim Gozukara, and Andrew J. Frierdich

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Niobium speciation in minerals revealed by L_2,3-edges XANES spectroscopy
Quentin Bollaert, Mathieu Chassé, Hebatalla Elnaggar, Amélie Juhin, Alexandra Courtin, Laurence Galoisy, Cécile Quantin, Marius Retegan, Delphine Vantelon, and Georges Calas

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The first occurrence of the carbide anion, C^4–, in an oxide mineral: Mikecoxite, ideally (CHg₄)OCl₂, from the McDermitt open-pit mine, Humboldt County, Nevada, U.S.A.
Mark A. Cooper, Gail Dunning, Frank C. Hawthorne, Chi Ma, Anthony R. Kampf, John Spratt, Christopher J. Stanley, and Andrew G. Christy

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Hydrothermal alteration of Ni-rich sulfides in peridotites of Abu Dahr, Eastern Desert, Egypt: Relationships among minerals in the Fe-Ni-Co-O-S system, f_O2 and f_S2
Ali H. Abdel-Halim

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