Norbergite Taylor W, West J Zeitschrift fur Kristallographie 70 (1929) 461-474 The Structure of Norbergite _cod_database_code 1011009 _database_code_amcsd 0017920 4.7 10.2 8.72 90 90 90 Pbnm atom x y z occ O1 .25 .292 .083 O2 .25 .042 .25 O3 -.25 .208 .25 F1 -.25 -.042 .083 .5 O4 -.25 -.042 .083 .5 Mg1 0 -.361 .078 Mg2 .014 -.111 .25 Si1 .389 -.278 .25