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Cristiana L. Ciobanu
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Journal Article

Gamma-enhancement of reflected light images as a routine method for assessment of compositional heterogeneity in common low-reflectance Fe-bearing minerals

Qiaoqiao Zhu, Guiqing Xie, Nigel J. Cook, Cristiana L. Ciobanu, Hui Wang
Published: 01 October 2024
American Mineralogist (2024) 109 (10): 1785–1797.
DOI: https://doi.org/10.2138/am-2023-9114
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Polysomatic intergrowths between amphiboles and non-classical pyriboles in magnetite: Smallest-scale features recording a protracted geological history

Yuri Tatiana Campo Rodriguez, Cristiana L. Ciobanu, Ashley Slattery, Nigel J. Cook, Maria Emilia Schutesky, Kathy Ehrig, Samuel A. King, Jie Yao
Published: 01 October 2024
American Mineralogist (2024) 109 (10): 1798–1818.
DOI: https://doi.org/10.2138/am-2023-9188
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EBSD mapping of Cu-Fe-sulfides reveal microstructures enriched in critical/precious metals and resolve deformation histories

Samuel A. King, Nigel J. Cook, Cristiana L. Ciobanu, Kathy Ehrig, Yuri Tatiana Campo Rodriguez, Sarah Gilbert, Animesh Basak
Published: 20 September 2024
American Mineralogist (2024)
DOI: https://doi.org/10.2138/am-2024-9396
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Journal Article

Ab initio calculations and crystal structure simulations for mixed layer compounds from the tetradymite series

Jie Yao, Cristiana L. Ciobanu, Nigel J. Cook, Kathy Ehrig, Gabriel I. Dima, Gerd Steinle-Neumann
Published: 01 August 2024
American Mineralogist (2024) 109 (8): 1375–1386.
DOI: https://doi.org/10.2138/am-2023-9018
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Lifting the cloak of invisibility: Gold in pyrite from the Olympic Dam Cu-U-Au-Ag deposit, South Australia

Kathy Ehrig, Cristiana L. Ciobanu, Max R. Verdugo-Ihl, Marija Dmitrijeva, Nigel J. Cook, Ashley Slattery
Published: 01 February 2023
American Mineralogist (2023) 108 (2): 259–276.
DOI: https://doi.org/10.2138/am-2022-8395
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Ferro-tschermakite with polysomatic chain-width disorder identified in silician magnetite from Wirrda Well, South Australia: A HAADF STEM study

Cristiana L. Ciobanu, Max R. Verdugo-Ihl, Nigel J. Cook, Kathy Ehrig, Ashley Slattery, Liam Courtney-Davies
Published: 01 April 2022
American Mineralogist (2022) 107 (4): 765–777.
DOI: https://doi.org/10.2138/am-2022-7975
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Tracking dynamic hydrothermal processes: Textures, in-situ Sr-Nd isotopes, and trace-element analysis of scheelite from the Yangjiashan vein-type W deposit, South China

Wei Li, Guiqing Xie, Nigel J. Cook, Jingwen Mao, Chao Li, Cristiana L. Ciobanu, Zhiyuan Zhang
Published: 01 December 2021
American Mineralogist (2021) 106 (12): 1987–2002.
DOI: https://doi.org/10.2138/am-2021-7677
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Nanomineralogy of hydrothermal magnetite from Acropolis, South Australia: Genetic implications for iron-oxide copper gold mineralization

Max R. Verdugo-Ihl, Cristiana L. Ciobanu, Nigel J. Cook, Kathy Ehrig, Ashley Slattery, Liam Courtney-Davies, Marija Dmitrijeva
Published: 01 August 2021
American Mineralogist (2021) 106 (8): 1273–1293.
DOI: https://doi.org/10.2138/am-2021-7557
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Gamma-enhancement of reflected light images: A rapid, effective tool for assessment of compositional heterogeneity in pyrite

QiaoQiao Zhu, Nigel J. Cook, GuiQing Xie, Cristiana L. Ciobanu, Wei Jian, Benjamin P. Wade, Jing Xu
Published: 01 April 2021
American Mineralogist (2021) 106 (4): 497–505.
DOI: https://doi.org/10.2138/am-2020-7606
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Phase relationships in the system ZnS-CuInS 2 : Insights from a nanoscale study of indium-bearing sphalerite

Jing Xu, Cristiana L. Ciobanu, Nigel J. Cook, Ashley Slattery, Xiaofeng Li, Alkiviadis Kontonikas-Charos
Published: 01 February 2021
American Mineralogist (2021) 106 (2): 192–205.
DOI: https://doi.org/10.2138/am-2020-7488
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REE-, Sr-, Ca-aluminum-phosphate-sulfate minerals of the alunite supergroup and their role as hosts for radionuclides

Nicholas D. Owen, Nigel J. Cook, Mark Rollog, Kathy J. Ehrig, Danielle S. Schmandt, Rahul Ram, Joël Brugger, Cristiana L. Ciobanu, Benjamin Wade, Paul Guagliardo
Published: 01 December 2019
American Mineralogist (2019) 104 (12): 1806–1819.
DOI: https://doi.org/10.2138/am-2019-7116
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Journal Article

Chessboard structures: Atom-scale imaging of homologs from the kobellite series

Wei Li, Cristiana L. Ciobanu, Ashley Slattery, Nigel J. Cook, Wenyuan Liu, Benjamin P. Wade, Guiqing Xie
Published: 01 March 2019
American Mineralogist (2019) 104 (3): 459–462.
DOI: https://doi.org/10.2138/am-2019-6860
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Trace element distributions in (Cu)-Pb-Sb sulfosalts from the Gutaishan Au-Sb deposit, South China: Implications for formation of high fineness native gold

Wei Li, Nigel J. Cook, Cristiana L. Ciobanu, Guiqing Xie, Benjamin P. Wade, Sarah E. Gilbert
Published: 01 March 2019
American Mineralogist (2019) 104 (3): 425–437.
DOI: https://doi.org/10.2138/am-2019-6674
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Nanoscale study of lamellar exsolutions in clinopyroxene from olivine gabbro: Recording crystallization sequences in iron-rich layered intrusions

Wenyuan Gao, Cristiana L. Ciobanu, Nigel J. Cook, Ashley Slattery, Fei Huang, Daoheng Wang
Published: 01 February 2019
American Mineralogist (2019) 104 (2): 244–261.
DOI: https://doi.org/10.2138/am-2019-6764
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Chemical zoning and lattice distortion in uraninite from Olympic Dam, South Australia

Edeltraud Macmillan, Cristiana L. Ciobanu, Kathy Ehrig, Nigel J. Cook, Allan Pring
Published: 01 October 2016
American Mineralogist (2016) 101 (10): 2351–2354.
DOI: https://doi.org/10.2138/am-2016-5753
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Uraninite from the Olympic Dam IOCG-U-Ag deposit: Linking textural and compositional variation to temporal evolution

Edeltraud Macmillan, Nigel J. Cook, Kathy Ehrig, Cristiana L. Ciobanu, Allan Pring
Published: 01 June 2016
American Mineralogist (2016) 101 (6): 1295–1320.
DOI: https://doi.org/10.2138/am-2016-5411
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Journal Article

Trace and minor elements in galena: A reconnaissance LA-ICP-MS study

Luke George, Nigel J. Cook, Cristiana L. Ciobanu, Benjamin P. Wade
Published: 01 February 2015
American Mineralogist (2015) 100 (2-3): 548–569.
DOI: https://doi.org/10.2138/am-2015-4862
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Journal Article

Graţianite, MnBi 2 S 4 , a new mineral from the Bǎi̧a Bihor skarn, Romania

Cristiana L. Ciobanu, Joël Brugger, Nigel J. Cook, Stuart J. Mills, Peter Elliott, Gheorghe Damian, Floarea Damian
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 1163–1170.
DOI: https://doi.org/10.2138/am.2014.4836
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Gold-telluride nanoparticles revealed in arsenic-free pyrite

Cristiana L. Ciobanu, Nigel J. Cook, Satoshi Utsunomiya, Masashi Kogagwa, Leonard Green, Sarah Gilbert, Benjamin Wade
Published: 01 August 2012
American Mineralogist (2012) 97 (8-9): 1515–1518.
DOI: https://doi.org/10.2138/am.2012.4207
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Determination of the oxidation state of Cu in substituted Cu-In-Fe-bearing sphalerite via μ-XANES spectroscopy

Nigel J. Cook, Cristiana L. Ciobanu, Joël Brugger, Barbara Etschmann, Daryl L. Howard, Martin D. de Jonge, Chris Ryan, David Paterson
Published: 01 February 2012
American Mineralogist (2012) 97 (2-3): 476–479.
DOI: https://doi.org/10.2138/am.2012.4042
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