Magnesiotaaffeite-6N3S Nuber B, Schmetzer K Neues Jahrbuch fur Mineralogie, Monatshefte 1983 (1983) 393-402 Crystal structure of ternary Be-Mg-Al oxides: taaffeite, BeMg3Al8O16, and musgravite, BeMg2Al6O12 Note: formerly known as musgravite-18R Locality: Casey Bay, Antarctica _database_code_amcsd 0014776 5.682 5.682 41.15 90 90 120 R-3m atom x y z occ Uiso Mg1 1/3 2/3 .1203 .83 .0023 Fe1 1/3 2/3 .1203 .17 .0023 Fe2 2/3 1/3 .0137 .3 .0056 Mg2 2/3 1/3 .0137 .42 .0056 Zn2 2/3 1/3 .0137 .28 .0056 Al1 0 0 0 .0033 Al2 .1668 .3336 .0573 .0032 Al3 0 .5 .5 .0031 Al4 2/3 1/3 .0967 .0025 Be 0 0 .1210 .0056 O1 .2936 .1468 .0300 .0042 O2 1/3 2/3 .0343 .0030 O3 .4948 .9897 .0824 .0042 O4 0 0 .0819 .0036 O5 .1462 .2924 .1409 .0040 O6 2/3 1/3 .1401 .0038