| Cooper, M. A., Abdu, Y. A., Ball, N. A., Cerny, P., Hawthorne, F. C., Kristiansen, R. (2012) Aspedamite, ideally ◻12(Fe3+,Fe2+)3Nb4[Th(Nb,Fe3+)12O42]{(H2O),(OH)}12, a new heteropolyniobate mineral species from the Herrebøkasa Quarry, Aspedammen, Østfold, southern Norway: description and crystal structure. The Canadian Mineralogist, 50 (4) 793-894 doi:10.3749/canmin.50.4.793 | Journal (article/letter/editorial) | MINERAL SPECIES FROM THE HERREBØKASA QUARRY, ASPEDAMMEN, ØSTFOLD, SOUTHERN NORWAY: DESCRIPTION AND CRYSTAL...Roy KRISTIANSEN P.O. Box 32, N–1650 Sellebakk, Norway Abstract Aspedamite, ideally 12(Fe3+,Fe2+)3Nb4[Th(Nb...mineral species from the Herrebøkasa quarry, Aspedammen, Østfold, southern Norway. It occurs as small euhedral...powder-diffraction pattern, Herrebøkasa quarry, Aspedammen, Østfold, Norway. Introduction The granite...quarry at Herrebøkasa is close to the small village of Aspedammen, south of the town of Halden on the southeastern |
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