Steedeite Haring M M M, McDonald A M The Canadian Mineralogist 52 (2014) 47-60 Steedeite, NaMn2[Si3BO9](OH)2: characterization, crystal-structure determination, and origin Locality: Poudrette quarry, Monteregie, Quebec, Canada _database_code_amcsd 0020229 6.837 7.575 8.841 99.91 102.19 102.78 P-1 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Na -.1247 .64118 .81008 .0199 .0315 .0176 .0158 .0123 .0101 .0050 Mn1 .12800 .87518 .60727 .95 .00946 .0091 .0101 .0085 .00222 .00180 .00136 Fe1 .12800 .87518 .60727 .05 .00946 .0091 .0101 .0085 .00222 .00180 .00136 Mn2 -.38639 .86495 .59872 .95 .01037 .0100 .0098 .0104 .00331 .00130 .00088 Fe2 -.38639 .86495 .59872 .05 .01037 .0100 .0098 .0104 .00331 .00130 .00088 Si1 -.27055 .52647 .38313 .0076 .0076 .0062 .0083 .0016 .0018 .0008 Si2 -.53952 .74187 .21311 .0080 .0062 .0078 .0090 .0018 .0012 .0001 Si3 .01582 .73835 .22546 .0071 .0065 .0076 .0066 .0018 .0015 .0007 B -.2798 .8757 .0291 .0057 .0043 .0074 .0046 .0020 .0008 -.0011 O1 .4415 .0798 .6388 .0101 .0103 .0086 .0095 .0017 .0012 .0000 O2 -.1887 .6853 .5474 .0104 .0110 .0090 .0099 .0021 .0023 .0003 O3 -.4806 .7830 .0524 .0140 .0111 .0160 .0128 .0004 .0053 -.0005 O4 .0839 .9205 .3686 .0101 .0119 .0088 .0085 .0022 .0021 .0002 O5 -.1274 .7708 .0698 .0135 .0144 .0162 .0097 .0087 -.0005 .0009 O6 .3217 .6841 .5976 .0110 .0100 .0080 .0155 .0021 .0042 .0034 O7 -.0939 .5540 .2805 .0117 .0133 .0095 .0136 .0022 .0072 .0028 O8 -.7925 .6785 .1678 .0109 .0067 .0125 .0124 .0028 .0024 .0000 O9 -.4764 .5622 .2688 .0133 .0116 .0095 .0161 .0041 -.0022 .0011 OOH10 .1985 .9290 .8689 .0127 .0134 .0118 .0123 .0037 .0020 .0021 OOH11 -.3053 .8805 .8609 .0244 .0424 .0320 .0092 .0259 .0091 .0084 H1 .287 .855 .914 .053 H2 -.417 .766 .84 .39