Bergslagite Hansen S, Falth L, Johnson O Zeitschrift fur Kristallographie 166 (1984) 73-80 Bergslagite, a mineral with tetrahedral berylloarsenate sheet anions Note: anisoB's from ICSD _database_code_amcsd 0010863 4.8818 7.809 10.127 90 90.16 90 P2_1/c atom x y z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ca .9985 .1117 .3284 .73 .0064 .0036 .00166 -.0006 .0004 -.00024 Be .5510 .4147 .3381 .62 As .4790 .27511 .07950 .41 .0050 .00189 .00068 .0004 -.00006 -.00002 O1 .2400 .4137 .0310 .99 .013 .0038 .0018 .0027 -.0002 .0001 O2 .6779 .2897 .4529 .97 .009 .0045 .0024 -.0003 .0010 .0011 O3 .6906 .3452 .1992 .93 .009 .0055 .0015 .0002 -.0005 -.0001 O4 .3106 .1044 .1439 .99 .010 .0029 .0032 -.0007 .0009 .0005 OH .2226 .4127 .3308 .94 .006 .0056 .0023 -.0005 .0003 -.0006