Braccoite Camara F, Bittarello E, Ciriotti M E, Nestola F, Radica F, Marchesini M Mineralogical Magazine 79 (2015) 171-189 As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: II. braccoite, NaMn5[Si5AsO17(OH)](OH), description and crystal structure Locality: Valletta mine, Maira Valley, Piedmont, Italy _database_code_amcsd 0020722 9.7354 9.9572 9.0657 92.691 117.057 105.323 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) Na1 .5 0 .5 .0300 .0487 .0380 .0215 .0280 .0230 .0175 Na2 .1912 .5340 .4432 .56 .0151 .0233 .0130 .0087 .0032 .0090 .0023 Mn1 .74388 .97982 .29542 .98 .01168 .0098 .0107 .0128 .00149 .00516 .00090 Mg1 .74388 .97982 .29542 .01 .01168 .0098 .0107 .0128 .00149 .00516 .00090 Ca1 .74388 .97982 .29542 .01 .01168 .0098 .0107 .0128 .00149 .00516 .00090 Mn2 .99723 .21282 .22004 .94 .01045 .0103 .0107 .0104 .00265 .00545 .00342 Mg2 .99723 .21282 .22004 .06 .01045 .0103 .0107 .0104 .00265 .00545 .00342 Mn3 .86298 .88807 .02950 .88 .00981 .0098 .0093 .0112 .00304 .00566 .00310 Mg3 .86298 .88807 .02950 .10 .00981 .0098 .0093 .0112 .00304 .00566 .00310 V3 .86298 .88807 .02950 .01 .00981 .0098 .0093 .0112 .00304 .00566 .00310 Al3 .86298 .88807 .02950 .01 .00981 .0098 .0093 .0112 .00304 .00566 .00310 Mn4 .57398 .66844 .09774 .99 .00999 .0093 .0091 .0111 .00244 .00485 .00261 Mg4 .57398 .66844 .09774 .01 .00999 .0093 .0091 .0111 .00244 .00485 .00261 Mn5 .71912 .55370 .85346 .99 .01242 .0125 .0113 .0153 .00397 .00813 .00284 Mg5 .71912 .55370 .85346 .01 .01242 .0125 .0113 .0153 .00397 .00813 .00284 Si1 .87449 .27556 .82439 .00920 .0087 .0102 .0101 .0031 .0055 .0040 Si2 .03102 .23894 .60955 .00861 .0085 .0092 .0079 .0025 .0039 .0027 Si3 .20746 .54939 .77372 .00943 .0086 .0088 .0110 .0021 .0050 .0039 Si4 .47814 .75745 .73037 .00925 .0097 .0090 .0093 .0025 .0049 .0038 Si5 .61959 .07757 .89560 .00829 .0081 .0091 .0086 .0029 .0044 .0038 Si6 .60697 .71401 .48355 .37 .00903 .0098 .00979 .00859 .00275 .00542 .00280 As6 .60697 .71401 .48355 .48 .00903 .0098 .00979 .00859 .00275 .00542 .00280 V6 .60697 .71401 .48355 .15 .00903 .0098 .00979 .00859 .00275 .00542 .00280 O1 .7048 .1654 .7947 .0132 .0107 .0153 .0142 .0024 .0072 .0071 O2 .8853 .2267 .6567 .0145 .0118 .0220 .0113 .0053 .0069 .0043 O3 .1110 .4094 .6204 .0133 .0159 .0102 .0104 .0016 .0049 .0020 O4 .3022 .6692 .7062 .0124 .0112 .0131 .0129 .0020 .0065 .0052 O5 .4987 .9265 .7529 .0128 .0138 .0087 .0121 .0012 .0045 .0036 O6 .4645 .7114 .5465 .0142 .0129 .0199 .0099 .0037 .0064 .0032 O7 .8556 .4331 .8222 .0144 .0134 .0108 .0214 .0042 .0101 .0058 O8 .9645 .7248 .0081 .0118 .0112 .0132 .0112 .0056 .0046 .0034 O9 .9535 .1532 .4220 .0123 .0137 .0134 .0087 .0022 .0056 .0019 O10 .8287 .8130 .2469 .0110 .0107 .0121 .0091 .0040 .0036 .0023 O11 .0805 .6058 .8035 .0143 .0148 .0140 .0200 .0063 .0120 .0069 O12 .6649 .4918 .0594 .0114 .0115 .0114 .0103 .0035 .0044 .0038 O13 .3746 .2765 .1181 .0113 .0128 .0120 .0103 .0051 .0059 .0040 O14 .4961 .1480 .9102 .0127 .0128 .0140 .0142 .0062 .0078 .0047 O15 .2404 .9490 .9367 .0112 .0115 .0110 .0104 .0034 .0048 .0044 O16 .6809 .8807 .4750 .0148 .0175 .0130 .0136 .0031 .0081 .0048 O17 .5172 .6042 .2977 .0137 .0142 .0142 .0105 .0017 .0060 .0003 O18 .2568 .3469 .3699 .0149 .0133 .0159 .0165 .0068 .0066 .0069 O19 .0897 .0502 .1728 .0134 .0125 .0153 .0112 .0049 .0044 .0034 H7 .937 .493 .820 .017 H19 .179 .050 .276 .98 .016 F19 .179 .050 .276 .02 .016