Article

• Farfan, Gabriela A., McKeown, David A., and Post, Jeffrey E. 2023. "Mineralogical characterization of biosilicas versus geological analogs." Geobiology, https://doi.org/10.1111/gbi.12553. 2023
• Chung, Dong Youn, Heaney, Peter J., Post, Jeffrey E., Stubbs, Joanne E., and Eng, Peter J. 2023. "Synchrotron X-ray diffraction of pyrolusite (MnO₂) and rutile (TiO₂) during heating to ∼1000 °C." Journal of Physics and Chemistry of Solids, 177 111284. https://doi.org/10.1016/j.jpcs.2023.111284. 2023
• Post, Jeffrey E., Heaney, Peter J., Ilton, Eugene S., and Elzinga, Evert J. 2023. "The crystal structure of feitknechtite (β-MnOOH) and a new MnOOH polymorph." American Mineralogist, 108, (11) 2131–2141. https://doi.org/10.2138/am-2022-8729. 2023
• Chen, Si Athena, Heaney, Peter J., Post, Jeffrey E., Eng, Peter J., and Stubbs, Joanne E. 2023. "Vacancy infilling during the crystallization of Fe-deficient hematite: An in situ synchrotron X-ray diffraction study of non-classical crystal growth." American Mineralogist, 108, (9) 1720–1731. https://doi.org/10.2138/am-2022-8379. 2023
• Zhang, Shuang, Li, Hui, Wu, Zhongkuan, Post, Jeffrey E., Lanson, Bruno, Liu, Yurong, Hu, Biyun, Wang, Mingxia, Zhang, Limei, Hong, Mei, Liu, Fan, and Yin, Hui. 2022. "Effects of cobalt doping on the reactivity of hausmannite for As(III) oxidation and As(V) adsorption." Journal of Environmental Sciences, 122 217–226. https://doi.org/10.1016/j.jes.2022.02.004. 2022
• Post, Jeffrey E., Heaney, Peter J., Fischer, Timothy B., and Ilton, Eugene S. 2022. "Manjiroite or hydrous hollandite?" American Mineralogist, 107, (4) 564–571. https://doi.org/10.2138/am-2021-7848. 2022
• Yun, Seohee, Hwang, Huijeong, Hwang, Gilchan, Kim, Yeongkyoo, Blom, Douglas, Vogt, Thomas, Post, Jeffrey E., Jeon, Tae-Yeol, Shin, Tae Joo, Zhang, Dong-Zhou, Kagi, Hiroyuki, and Lee, Yongjae. 2022. "Super-hydration and reduction of manganese oxide minerals at shallow terrestrial depths." Nature Communications, 13, (1). https://doi.org/10.1038/s41467-022-29328-y. 2022
• Wise, Michael A. and Post, Jeffrey E. 2022. "The Roebling Apatite, Pulsifer Quarry, Androscoggin County, Maine." Rocks & Minerals, 97, (1) 8–11. https://doi.org/10.1080/00357529.2022.1989946. 2022
• Liao, Shuai, Wang, Xiaoming, Yin, Hui, Post, Jeffrey E., Yan, Yupeng, Tan, Wenfeng, Huang, Qiaoyun, Liu, Fan, and Feng, Xionghan. 2021. "Corrigendum to Effects of Al substitution on local structure and morphology of lepidocrocite and its phosphate adsorption kinetics [Geochim. Cosmochim. Acta 276 (2020) 109-121]." Geochimica et Cosmochimica Acta, 314 414. https://doi.org/10.1016/j.gca.2021.09.001. 2021
• Farfan, Gabriela A., Apprill, Amy, Cohen, Anne, DeCarlo, Thomas M., Post, Jeffrey E., Waller, Rhian G., and Hansel, Colleen M. 2021. "Crystallographic and chemical signatures in coral skeletal aragonite." Coral Reefs, https://doi.org/10.1007/s00338-021-02198-4. 2021
• Liao, Shuai, Wang, Xiaoming, Yin, Hui, Post, Jeffrey E., Yan, Yupeng, Tan, Wenfeng, Huang, Qiaoyun, Liu, Fan, and Feng, Xionghan. 2021. "Effects of Al substitution on local structure and morphology of lepidocrocite and its phosphate adsorption kinetics (vol 276, pg 109, 2020)." Geochimica et Cosmochimica Acta, 414–414. 314, Oxford; England: Pergamon-Elsevier Science Limited. https://doi.org/10.1016/j.gca.2021.09.001. 2021
• Zhang, Shuang, Li, Hui, Wu, Zhongkuan, Post, Jeffrey E., Lanson, Bruno, Elzinga, Evert J., Liu, Yurong, Li, Haigang, Hong, Mei, Liu, Fan, and Yin, Hui. 2021. "Effects of Co doping on the structure and physicochemical properties of hausmannite (Mn3O4) and its transformation during aging." Chemical Geology, 582. https://doi.org/10.1016/j.chemgeo.2021.120448. 2021
• Elmi, Chiara, Post, Jeffrey E., Heaney, Peter J., and Ilton, Eugene S. 2021. "Effects of pH and Ca exchange on the structure and redox state of synthetic Na-birnessite." American Mineralogist, 106, (1) 15–27. https://doi.org/10.2138/am-2020-7112. 2021
• Origlieri, Marcus J., Downs, Robert T., Hoffman, Derek R., Ducea, Mihai N., and Post, Jeffrey E. 2021. "Marshallsussmanite, NaCaMnSi3O8(OH), a new pectolite-group mineral providing insight into hydrogen bonding in pyroxenoids." Mineralogical Magazine, 85, (3) 444–453. https://doi.org/10.1180/mgm.2018.2. 2021
• Post, Jeffrey E., McKeown, David A., and Heaney, Peter J. 2021. "Raman spectroscopy study of manganese oxides: Layer structures." American Mineralogist, 106, (3) 351–366. https://doi.org/10.2138/am-2021-7666. 2021
• Chen, Si Athena, Heaney, Peter J., Post, Jeffrey E., Fischer, Timothy B., Eng, Peter J., and Stubbs, Joanne E. 2021. "Superhydrous hematite and goethite: A potential water reservoir in the red dust of Mars?" Geology, 49, (11) 1343–1347. https://doi.org/10.1130/G48929.1. 2021
• Farfan, Gabriela A., Rakovan, John, Ackerson, Michael R., Andrews, Benjamin J., and Post, Jeffrey E. 2021. "The origin of trapiche-like inclusion patterns in quartz from Inner Mongolia, China." American Mineralogist, 106, (11) 1797–1808. https://doi.org/10.2138/am-2021-7454. 2021
• Ling, Florence T., Post, Jeffrey E., Heaney, Peter J., Santelli, Cara M., Ilton, Eugene S., Burgos, William D., and Rose, Arthur W. 2020. "A multi-method characterization of natural terrestrial birnessites." American Mineralogist, 105, (6) 833–847. https://doi.org/10.2138/am-2020-7303. 2020
• Liang, Xinran, Post, Jeffrey E., Lanson, Bruno, Wang, Xiaoming, Zhu, Mengqiang, Liu, Fan, Tan, Wenfeng, Feng, Xionghan, Zhu, Guomin, Zhang, Xin, and De Yoreo, James J. 2020. "Coupled morphological and structural evolution of δ-MnO₂ to α-MnO₂ through multistage oriented assembly processes: the role of Mn(III)." Environmental Science-Nano, 7, (1) 238–249. https://doi.org/10.1039/c9en01000a. 2020
• Liao, Shuai, Wang, Xiaoming, Yin, Hui, Post, Jeffrey E., Yan, Yupeng, Tan, Wenfeng, Huang, Qiaoyun, Liu, Fan, and Feng, Xionghan. 2020. "Effects of Al substitution on local structure and morphology of lepidocrocite and its phosphate adsorption kinetics." Geochimica et Cosmochimica Acta, 276 109–121. https://doi.org/10.1016/j.gca.2020.02.027. 2020
• Xie, Fei, Cao, Yu, Ranchon, Cindy, Hart, Alan, Hansen, Robin, Post, Jeffrey E., Whitney, Coralyn W., Dawson-Tarr, Emma, Drew, Alan J., and Dunstan, David J. 2020. "Explanation of the Colour Change in Alexandrites." Scientific Reports, 10, (1) Article 6130. https://doi.org/10.1038/s41598-020-62707-3. 2020
• Post, Jeffrey E., Feather, Russell, and Butler, James E. 2020. "Kimberley Diamond Acquired by the Smithsonian Institution, and Its Fluorescence and Phosphorescence Characteristics Revealed." Journal of Gemmology, 37, (1) 14–15. https://doi.org/10.15506/JoG.2020.37.1.14. 2020
• Post, Jeffrey E., McKeown, David A., and Heaney, Peter J. 2020. "Raman spectroscopy study of manganese oxides: Tunnel structures." American Mineralogist, 105, (8) 1175–1190. https://doi.org/10.2138/am-2020-7390. 2020
• Yang, Peng, Post, Jeffrey E., Wang, Qian, Xu, Wenqian, Geiss, Roy, McCurdy, Patrick R., and Zhu, Mengqiang. 2019. "Metal Adsorption Controls Stability of Layered Manganese Oxides." Environmental science & technology, 53, (13) 7453–7462. https://doi.org/10.1021/acs.est.9b01242. 2019
• Kong, Kyeong Pil, Fischer, Timothy B., Heaney, Peter J., Post, Jeffrey E., Stubbs, Joanne E., and Eng, Peter J. 2019. "Mineralogical and geochemical constraints on chromium oxidation induced by birnessite." Applied Geochemistry, 108 UNSP 104365–UNSP 104365. https://doi.org/10.1016/j.apgeochem.2019.104365. 2019
• Farfan, Gabriela A. and Post, Jeffrey E. 2019. "Quartz from Madagascar with Fuchsite Phantom Inclusions." The Journal of Gemmology, 36, (8) 698–699. https://doi.org/10.15506/JoG.2019.36.8.698. 2019
• Megaw, Peter K. M., Huizing, Terry E., Richards, R. P., and Post, Jeffrey E. 2018. "Connoisseur's Choice: Distinctive Twinned Calcite from the Palmarejo Mine, Chihuahua, Mexico." Rocks & Minerals, 93, (5) 434–441. https://doi.org/10.1080/00357529.2018.1477010. 2018
• Peterson, Kristina M., Heaney, Peter J., and Post, Jeffrey E. 2018. "Evolution in the structure of akaganeite and hematite during hydrothermal growth: an in situ synchrotron X-ray diffraction analysis." Powder Diffraction, 33, (4) 287–297. https://doi.org/10.1017/S0885715618000623. 2018
• Lin, Xiayang, Heaney, Peter J., and Post, Jeffrey E. 2018. "Iridescence in Metamorphic "Rainbow" Hematite." Gems & Gemology, 54, (1) 28–39. https://doi.org/10.5741/GEMS.54.1.28. 2018
• Brooks, Alison S., Yellen, John E., Potts, Richard, Behrensmeyer, Anna K., Deino, Alan L., Leslie, David E., Ambrose, Stanley H., Ferguson, Jeffrey R., d'Errico, Francesco, Zipkin, Andrew M., Whittaker, Scott, Post, Jeffrey, Veatch, E. Grace, Foecke, Kimberly, and Clark, Jennifer B. 2018. "Long-distance stone transport and pigment use in the earliest Middle Stone Age." Science, 360, (6384) 90–94. https://doi.org/10.1126/science.aao2646. 2018
• Ling, Florence T., Post, Jeffrey E., Heaney, Peter J., and Ilton, Eugene S. 2018. "The relationship between Mn oxidation state and structure in triclinic and hexagonal birnessites." Chemical Geology, 479 216–227. https://doi.org/10.1016/j.chemgeo.2018.01.011. 2018
• Yang, Peng, Lee, Seungyeol, Post, Jeffrey E., Xu, Huifang, Wang, Qian, Xu, Wenqian, and Zhu, Mengqiang. 2018. "Trivalent manganese on vacancies triggers rapid transformation of layered to tunneled manganese oxides (TMOs): Implications for occurrence of TMOs in low-temperature environment." Geochimica et Cosmochimica Acta, 240 173–190. https://doi.org/10.1016/j.gca.2018.08.014. 2018
• Zubkov, V. I., Solomnikova, A. V., Post, Jeffrey E., Gaillou, Eloise, and Butler, J. E. 2017. "Characterization of electronic properties of natural type IIb diamonds." Diamond and Related Materials, 72 87–93. https://doi.org/10.1016/j.diamond.2017.01.011. 2017
• Butler, James E., Post, Jeffrey E., and Wang, Wuyi. 2017. "The Foxfire diamond, revisited." Gems & Gemology, 53, (4) 479–481. 2017
• Peterson, Kristina M., Heaney, Peter J., and Post, Jeffrey E. 2016. "A kinetic analysis of the transformation from akaganeite to hematite: An in situ time-resolved X-ray diffraction study." Chemical Geology, 444 27–36. https://doi.org/10.1016/j.chemgeo.2016.09.017. 2016
• Post, Jeffrey E., Thomas, Ellen, and Heaney, Peter J. 2016. "Jianshuiite in oceanic manganese nodules at the Paleocene-Eocene boundary." American Mineralogist, 101, (2) 407–414. https://doi.org/10.2138/am-2016-5347. 2016
• Ilton, Eugene S., Post, Jeffrey E., Heaney, Peter J., Ling, Florence T., and Kerisit, Sebastien N. 2016. "XPS determination of Mn oxidation states in Mn (hydr)oxides." Applied Surface Science, 366 475–485. https://doi.org/10.1016/j.apsusc.2015.12.159. 2016
• Peterson, Kristina M., Heaney, Peter J., Post, Jeffrey E., and Eng, Peter J. 2015. "A refined monoclinic structure for a variety of “hydrohematite”." American Mineralogist, 100, (2-3) 570–579. https://doi.org/10.2138/am-2015-4807. 2015
• Hwang, Gil Chan, Post, Jeffrey E., and Lee, Yongjae. 2015. "In situ high-pressure synchrotron X-ray powder diffraction study of tunnel manganese oxide minerals: hollandite, romanechite, and todorokite." Physics and Chemistry of Minerals, 1–7. https://doi.org/10.1007/s00269-014-0731-8. 2015
• Ling, Florence T., Heaney, Peter J., Post, Jeffrey E., and Gao, Xiang. 2015. "Transformations from triclinic to hexagonal birnessite at circumneutral pH induced through pH control by common biological buffers." Chemical Geology, 416 1–10. https://doi.org/10.1016/j.chemgeo.2015.10.007. 2015
• Rakovan, John, Gaillou, Eloïse, Post, Jeffrey E., Jaszczak, John A., and Betts, John H. 2014. "Optically Sector-Zoned (Star) Diamonds from Zimbabwe." Rocks & Minerals, 89, (2) 173–178. https://doi.org/10.1080/00357529.2014.842844. 2014
• Post, Jeffrey E. and Farges, Francois. 2014. "The Hope Diamond: Rare Gem, Historic Jewel." Rocks & Minerals, 89, (1) 16–25. https://doi.org/10.1080/00357529.2014.842831. 2014
• Post, Jeffrey E. and Heaney, Peter J. 2014. "Time-resolved synchrotron X-ray diffraction study of the dehydration behavior of chalcophanite." American Mineralogist, 99, (10) 1956–1961. https://doi.org/10.2138/am-2014-4760. 2014
• Fleeger, Claire R., Heaney, Peter J., and Post, Jeffrey E. 2013. "A time-resolved X-ray diffraction study of Cs exchange into hexagonal H-birnessite." American Mineralogist, 98, (4) 671–679. https://doi.org/10.2138/am.2013.4287. 2013
• Gaillou, E., Post, Jeffrey E., Rose, Timothy R., and Butler, J. E. 2013. "Cathodoluminescence of Natural, Plastically Deformed Pink Diamonds." Microscopy and Microanalysis, 18, (6) 1292–1302. https://doi.org/10.1017/S1431927612013542. 2013
• Ivanova, Marina A., Lorenz, Cyril A., Franchi, Ian A., Bychkov, Andrei Y., and Post, Jeffrey E. 2013. "Experimental simulation of oxygen isotopic exchange in olivine and implication for the formation of metamorphosed carbonaceous chondrites." Meteoritics & Planetary Science, 48, (10) 2059–2070. https://doi.org/10.1111/maps.12204. 2013
• Gaillou, Eloïse, Post, Jeffrey E., Rost, Detlef, and Butler, James E. 2012. "Boron in natural type IIb blue diamonds: Chemical and spectroscopic measurements." American Mineralogist, 97, (1) 1–18. https://doi.org/10.2138/am.2012.3925. 2012
• Hummer, Daniel R., Heaney, Peter J., and Post, Jeffrey E. 2012. "In situ observations of particle size evolution during the hydrothermal crystallization of TiO2: A time-resolved synchrotron SAXS and WAXS study." Journal of Crystal Growth, 344, (1) 51–58. https://doi.org/10.1016/j.jcrysgro.2012.01.044. 2012
• Cygan, Randall T., Post, Jeffrey E., Heaney, Peter J., and Kubicki, James D. 2012. "Molecular models of birnessite and related hydrated layered minerals." American Mineralogist, 97, (8-9) 1505–1514. https://doi.org/10.2138/am.2012.3957. 2012
• Zhu, Mengqiang, Farrow, Christopher L., Post, Jeffrey E., Livi, Kenneth J. T., Billinge, Simon J. L., Ginder-Vogel, Matthew, and Sparks, Donald L. 2012. "Structural Study of Biotic and Abiotic Poorly-Crystalline Manganese Oxides Using Atomic Pair Distribution Function Analysis." Geochimica et Cosmochimica Acta, 81 39–55. https://doi.org/10.1016/j.gca.2011.12.006. 2012
• Wall, Andrew J., Heaney, Peter J., Mathur, Ryan, Post, Jeffrey E., Hanson, Jonathan C., and Eng, Peter J. 2011. "A flow-through reaction cell that couples time-resolved X-ray diffraction with stable isotope analysis." Journal of Applied Crystallography, 44, (2) 429–432. https://doi.org/10.1107/S0021889811000525. 2011
• Sucher, Scott D., Attaway, Stephen W., Attaway, Nancy L., and Post, Jeffrey E. 2010. "Possible "Sister" Stones of the Hope Diamond." Gems & Gemology, 46, (1) 28–35. https://doi.org/10.5741/GEMS.46.1.28. 2010
• Gaillou, Eloise, Wang, Wuyi, Post, Jeffrey E., King, John M., Butler, James E., Collins, Alan T., and Moses, Thomas M. 2010. "The Wittelsbach-Graff and Hope Diamonds: Not Cut from the Same Rough." Gems & Gemology, 46, (2) 80–88. https://doi.org/10.5741/GEMS.46.2.80. 2010
• Hummer, Daniel R., Kubicki, James D., Kent, Paul R. C., Post, Jeffrey E., and Heaney, Peter J. 2009. "Origin of Nanoscale Phase Stability Reversals in Titanium Oxide Polymorphs." Journal of Physical Chemistry C, 113, (11) 4240–4245. https://doi.org/10.1021/jp811332w. 2009
• Gaillou, Eloise, Fritsch, Emmanuel, Aguilar-Reyes, Bertha, Rondeau, Benjamin, Post, Jeffrey E., Barreau, Alain, and Ostroumov, Mikhail. 2008. "Common gem opal: An investigation of micro- to nano-structure." American Mineralogist, 93, (11-12) 1865–1873. https://doi.org/10.2138/am.2008.2518. 2008
• Fischer, Timothy B., Heaney, Peter J., Jang, Je-Hun, Ross, Daniel E., Brantley, Susan L., Post, Jeffrey E., and Tien, Ming. 2008. "Continuous time-resolved X-ray diffraction of the biocatalyzed reduction of Mn oxide." American Mineralogist, 93, (11-12) 1929–1932. https://doi.org/10.2138/am.2008.3038. 2008
• Post, Jeffrey E., Heaney, Peter J., and Ertl, A. 2008. "Rietveld refinement of the rancieite structure using synchrotron powder diffraction data." Powder Diffraction, 23, (1) 10–14. https://doi.org/10.1154/1.2836477. 2008
• Hummer, Daniel R., Heaney, Peter J., and Post, Jeffrey E. 2008. "Thermal expansion of anatase and rutile between 300 and 575 K using synchrotron powder X-ray diffraction (vol 22, pg 352, 2007)." Powder Diffraction, 23, (3) 267–267. https://doi.org/10.1154/1.2966362. 2008
• Gaillou, Eloise and Post, Jeffrey E. 2007. "An examination of the Napoleon diamond necklace." Gems & Gemology, 43, (4) 352–357. https://doi.org/10.5741/GEMS.43.4.352. 2007
• Eaton-Magana, S., Post, Jeffrey E., Heaney, Peter J., Walters, R. A., Breeding, C. M., and Butler, J. E. 2007. "Fluorescence spectra of colored diamonds using a rapid, mobile spectrometer." Gems & Gemology, 43, (4) 332–351. https://doi.org/10.5741/GEMS.43.4.332. 2007
• Post, Jeffrey E., Bish, D., and Heaney, Peter J. 2007. "Synchrotron Powder X-ray Diffraction Study of the Structure and Dehydration Behavior of Sepiolite." American Mineralogist, 92 91–97. 2007
• Hummer, Daniel R., Heaney, Peter J., and Post, Jeffrey E. 2007. "Thermal expansion of anatase and rutile between 300 and 575 K using synchrotron powder X-ray diffraction." Powder Diffraction, 22, (4) 352–357. https://doi.org/10.1154/1.2790965. 2007