Manganotantalite Grice J D, Ferguson R B, Hawthorne F C The Canadian Mineralogist 14 (1976) 540-549 The crystal structures of tantalite, ixiolite and wodginite from Bernic lake, Manitoba I. Tantalite and ixiolite Locality: Bernic Lake, Manitoba, Canada _database_code_amcsd 0005130 14.413 5.760 5.084 90 90 90 Pbcn atom x y z occ Biso Mn 0 .322 .25 .97 .63 Ti 0 .322 .25 .02 .63 Fe 0 .322 .25 .01 .63 Ta .1628 .1770 .7367 .64 .64 Nb .1628 .1770 .7367 .36 .64 O1 .099 .094 .055 .4 O2 .419 .112 .108 1.3 O3 .758 .121 .099 .9