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Russia | |
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| Pekov, I. V., Chukanov, N. V., Yamnova, N. A., Zadov, A. E., Tarassoff, P. (2007) Gjerdingenite-Na and gjerdingenite-Ca, two new minerals of the labuntsovite group. The Canadian Mineralogist, 45 (3) 529-539 doi:10.2113/gscanmin.45.3.529 |
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Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia