Neptunite Cannillo E, Mazzi F, Rossi G Acta Crystallographica 21 (1966) 200-208 The crystal structure of neptunite Locality: San Benito, California, USA _database_code_amcsd 0018847 16.46 12.50 10.01 90 115.43 90 C2/c atom x y z occ Biso Fe2+1 .3402 .3211 .0983 .5 1.52 Ti1 .3402 .3211 .0983 .5 1.52 Fe2+2 .0883 .0561 .1128 .5 1.52 Ti2 .0883 .0561 .1128 .5 1.52 Na .2640 .1983 .3094 2.06 K 0 .4204 .25 1.72 Li .5 .4353 .25 4.47 Si1 .1452 .4060 .0566 .8 Si2 .5233 .2280 .0855 .8 Si3 .7698 .4741 .1083 .8 Si4 .8942 .1491 .0816 .8 O1 .9538 .0446 .0688 1.44 O2 .4549 .3253 .0666 1.44 O3 .1099 .1673 .2664 1.44 O4 .3723 .4387 .2348 1.44 O5 .2050 .0796 .0888 1.44 O6 .7122 .3677 .0427 1.44 O7 .2088 .3077 .0707 1.44 O8 .8339 .4919 .0239 1.44 O9 .1592 .4505 .2148 1.44 O10 .3975 .2104 .2541 1.44 O11 .4613 .1173 .0239 1.44 O12 .9291 .2562 .0316 1.44