Leifite Armstrong J A, Friis H, Lieb A, Finch A A, Weller M T American Mineralogist 95 (2010) 519-526 Combined single-crystal X-ray and neutron powder diffraction structure analysis exemplified through full structure determinations of framework and layer beryllate minerals Locality: Vesle Aroya, Langesundsfjord, Norway _database_code_amcsd 0005040 14.3446 14.3446 4.8455 90 90 120 P-3m1 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Na1 .7508 .2492 .2019 .01395 .014 .014 .013 .006 .0009 -.0009 K1Na2 0 0 0 .4600 .00953 .013 .013 .003 .006 0 0 Na2O6 0 0 .5 .2000 .030 .013 .013 .003 .006 0 0 Si1A 0 .21634 .5 .5567 .01242 .009 .0058 .0137 -.0032 -.0015 -.0008 Al1B 0 .21634 .5 .4433 .01242 .009 .0058 .0137 -.0032 -.0015 -.0008 Si2 0 .34374 0 .01243 .011 .0108 .0154 .0056 -.0002 -.0001 Si3 .44746 .55254 .30616 .00777 .0083 .0083 .0079 .0051 -.0000 .0000 Be1 1/3 2/3 .3685 .01543 .020 .020 .006 .0100 0 0 O1 .10022 .89978 .3903 .02148 .018 .018 .012 -.004 -.0009 .0009 O2 .30901 .26112 .2495 .01413 .017 .008 .017 .0055 .0067 .0044 O3 .35849 .45743 .1026 .00813 .009 .009 .012 .009 .0010 -.0016 O4 .5 0 .5 .01099 .014 .013 .006 .007 .0024 .005 O5 .39389 .60612 .4835 .00718 .008 .008 .007 .005 .0022 -.0022 F 1/3 2/3 .0397 .01015 .012 .012 .008 .0057 0 0