Boromullite Buick I S, Grew E S, Armbruster T, Medenbach O, Yates M, Bebout G, Clarke G European Journal of Mineralogy 20 (2008) 935-950 Boromullite, Al9BSi2O19, a new mineral from granulite-facies metapelites, Mount Safford, central Australia: a natural analogue of a synthetic "boron-mullite" Locality: Mount Safford, central Australia _database_code_amcsd 0007265 5.7168 15.023 7.675 90 90 90 Cmc2_1 atom x y z occ Uiso Al1 .2544 .1212 .6536 .0118 Al2Al2 0 .2980 .4943 .5 .0127 Al3 .5 .3019 .4908 .5 .0119 Al4 .5 .0542 .3214 .0166 Al6 .5 .2435 .3469 .5 .0088 B5 0 .014 .383 .5 .024 Si2Al2 0 .2980 .4943 .5 .0127 Si5 0 .0487 .3101 .5 .0063 O1 0 .1944 .5906 .0094 O2 .5 .1825 .5510 .022 O3 .2405 .3112 .3692 .0221 O4 .2252 .0572 .4359 .0105 O5 .5 .0483 .7270 .0100 O6 0 -.0492 .2451 .0106 O7 0 .3593 .6785 .039 O8 0 .1214 .163 .5 .016