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Marian V. Lupulescu, Jeffrey R. Chiarenzelli, Mark E. Pecha, Jared W. Singer and Sean P. Regan
Columbite crystals from niobium-yttrium-fluorine (NYF) pegmatites lacking zircon or containing metamict cyrtolite were analyzed for major and minor elements (Electron Microprobe (EMP)), trace elements (Laser Ablation-Inductively Coupled Plasma-Mass Spect...
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