Columbite-Group Minerals from New York Pegmatites: Insights from Isotopic and Geochemical Analyses

by Marian V. Lupulescu, Jeffrey R. Chiarenzelli, Mark E. Pecha, Jared W. Singer, Sean P. Regan
Published 2018-05-01

Influence of synthesis and processing parameters of the columbite precursor on the amount of Perovskite PMN

by A.A. Cavalheiro, M.A. Zaghete, C.O. Paiva Santos, J.A. Varela, E. Longo
Published 1999-10-01

Effect of the Addition of Potassium or Lithium on the Columbite Precursor Microstructure

by Alberto A. Cavalheiro, Maria A. Zaghete, Carlos O. Paiva-Santos, José A. Varela
Published 2002-10-01

Upgrading of a Nigerian Ixiolite ore to Columbite by Sulphuric acid treatment

by Alafara A Baba, Oluwaseun Ajibola, Abdullah S Ibrahim, Folahan A Adekola, Ruth O Sanni, Yunusa Abdulganiyu
Published 2016-09-01

ACCESSORY NIOBIUM-TANTALUM MINERALS OF THE ALEISK GRANITE MASSIF (N-W RUDNY ALTAY AREA)

by Konstantin L. Novoselov
Published 2020-02-01

Mineralogical and physical studies of low-grade tantalum-tin ores from selected areas of Rwanda

by Jean Baptiste Habinshuti, Jeanne Pauline Munganyinka, Adelena R. Adetunji, Brajendra Mishra, Grace Ofori-Sarpong, Gbetoglo Charles Komadja, Himanshu Tanvar, Janvier Mukiza, Azikiwe P. Onwualu
Published 2021-09-01

Liberation Characteristics of Ta–Sn Ores from Penouta, NW Spain

by Pura Alfonso, Sarbast Ahmad Hamid, Hernan Anticoi, Maite Garcia-Valles, Josep Oliva, Oriol Tomasa, Francisco Javier López-Moro, Marc Bascompta, Teresa Llorens, David Castro, Francisco García Polonio
Published 2020-05-01

Niobium Mineralogy of Pliocene A₁-Type Granite of the Carpathian Back-Arc Basin, Central Europe

by Monika Huraiová, Patrik Konečný, Vratislav Hurai
Published 2019-08-01

Geochemical Fingerprinting of Conflict Minerals Using Handheld XRF: An Example for Coltan, Cassiterite, and Wolframite Ores from Democratic Republic of the Congo, Africa

by Alireza K. Somarin
Published 2019-09-01

<b>Environmental implication of metal concentrations in soil, plant foods and pond in area around the Derelict Udege mines of Nasarawa State, Nigeria</b>

by M.O. Aremu, B.O. Atolaiye, L. Labaran
Published 2010-06-01

Nb–Ta–Ti Oxides in Topaz Granites of the Geyersberg Granite Stock (Erzgebirge Mts., Germany)

by Miloš René
Published 2019-03-01

Columbite U-Pb Geochronology of Kalu’an Lithium Pegmatites in Northern Xinjiang, China: Implications for Genesis and Emplacement History of Rare-Element Pegmatites

by Yonggang Feng, Ting Liang, Ze Zhang, Yiqian Wang, Yi Zhou, Xiuqing Yang, Jinggang Gao, Hui Wang, Kun Ding
Published 2019-07-01

Estudio de PMN cerámico dopado con KNbO₃ y LiNbO₃ sintetizado por Pechini

by Cilense, M., Paiva-Santos, C. O., Zaghete, M. A., Cavalheiro, A. A., Varela, J. A.
Published 2002-04-01

Interfacial Structure Change and Selective Dissolution of Columbite–(Fe) Mineral during HF Acid Leaching

by Fanxi Yang, Qiuju Li, Dan Wang, Cang Zhou, Shaobo Zheng
Published 2021-01-01

Occurrence and Composition of Columbite-(Fe) In the Reduced A-Type Desemborque Pluton, Graciosa Province (S-SE Brazil)

by Astrid Siachoque, Rodolfo Garcia, Silvio R.F. Vlach
Published 2020-05-01

The Distribution of Rare Metals in the LCT Pegmatites from the Giraúl Field, Angola

by Antonio Olimpio Gonçalves, Joan-Carles Melgarejo, Pura Alfonso, Sandra Amores, Andrés Paniagua, Andrés Buta Neto, Eduardo Alves Morais, Antoni Camprubí
Published 2019-09-01

Influence of Synthesis-Related Microstructural Features on the Electrocaloric Effect for 0.9Pb(Mg_1/3Nb_2/3)O₃–0.1PbTiO₃ Ceramics

by Hana Uršič, Marko Vrabelj, Mojca Otoničar, Lovro Fulanović, Brigita Rožič, Zdravko Kutnjak, Vid Bobnar, Barbara Malič
Published 2021-04-01

Columbite-Tantalite Group Mineral U-Pb Geochronology of Chaqiabeishan Li-Rich Granitic Pegmatites in the Quanji Massif, NW China: Implications for the Genesis and Emplacement Ages...

by Tong Pan, Qing-Feng Ding, Xuan Zhou, Shan-Ping Li, Jie Han, Long Cheng
Published 2021-01-01

Chemical Evolution of Nb-Ta Oxides and Cassiterite in Phosphorus-Rich Albite-Spodumene Pegmatites in the Kangxiwa–Dahongliutan Pegmatite Field, Western Kunlun Orogen, China

by Yonggang Feng, Ting Liang, Xiuqing Yang, Ze Zhang, Yiqian Wang
Published 2019-03-01

Étude minéralogique des granites de métaux rares en Chine méridionale : étude de cas du granit de Songshugang et de Huangshan, province de Jiangxi

by Zhu, Ze-Ying
Published 2018