Hawthorne F C, Wise M A, Černý P, Abdu Y A, Ball N A, Pieczka A, Włodek A (2018) Beusite-(Ca), ideally CaMn22+(PO4)2, a new graftonite-group mineral from the Yellowknife pegmatite field, Northwest Territories, Canada: Description and crystal structure. 82, 1323-1332
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Hawthorne F C, Wise M A, Černý P, Abdu Y A, Ball N A, Pieczka A, Włodek A (2018) Beusite-(Ca), ideally CaMn22+(PO4)2, a new graftonite-group mineral from the Yellowknife pegmatite field, Northwest Territories, Canada: Description and crystal structure. Mineralogical Magazine 82, 1323-1332
Hawthorne, F.C., Ball, N., Wise, M.A., Pieczka, A. and Włodek, A. (2017) Beusite-(Ca), IMA 2017-051. CNMNC Newsletter No. 39, October 2017, page 1283; Mineralogical Magazine, 81, 1279–1286.
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Hawthorne F C, Wise M A, Černý P, Abdu Y A, Ball N A, Pieczka A, Włodek A (2018) Beusite-(Ca), ideally CaMn22+(PO4)2, a new graftonite-group mineral from the Yellowknife pegmatite field, Northwest Territories, Canada: Description and crystal structure. 82, 1323-1332