Ekatite Keller P European Journal of Mineralogy 13 (2001) 769-777 Ekatite, (Fe3+,Fe2+,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2, a new mineral from Tsumeb, Namibia, and its crystal structure Locality: Tsumeb, Namibia _database_code_amcsd 0006895 12.773 12.773 5.051 90 90 120 P6_3mc atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) FeM1 .91549 .57285 .5935 .508 .0107 .0127 .0098 .0101 .0059 -.0002 .0008 FeM2 .91549 .57285 .5935 .337 .0107 .0127 .0098 .0101 .0059 -.0002 .0008 ZnM2 .91549 .57285 .5935 .150 .0107 .0127 .0098 .0101 .0059 -.0002 .0008 As1 .71631 .85816 .6246 .50 .0077 .0075 .0070 .0085 .0038 -.0005 -.0002 As2 2/3 1/3 .895 .768 .0071 .0074 .0074 .0064 .0037 0 0 Si2 2/3 1/3 .837 .246 .0077 .0076 .0076 .0202 .0038 0 0 O1 .6048 .8024 .886 .0185 .0164 .0252 .0109 .0082 .0054 .0027 O2 .6559 .9339 .437 .0125 .0187 .0076 .0127 .0076 -.0061 -.0011 O3 .5968 .1936 .723 .0216 .0215 .0043 .0334 .0021 -.0035 -.0070 OH4 .0490 .5245 .778 .0129 .0104 .0117 .0163 .0052 .0040 .0020 OH5 2/3 1/3 .166 .246 .0094 H1 .01 .502 .60 H2 2/3 1/3 .38810 .246