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Braccoite |
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Camara F, Bittarello E, Ciriotti M E, Nestola F, Radica F, Marchesini M |
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Mineralogical Magazine 79 (2015) 171-189 |
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As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: |
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II. braccoite, NaMn5[Si5AsO17(OH)](OH), description and crystal structure |
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Locality: Valletta mine, Maira Valley, Piedmont, Italy |
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_database_code_amcsd 0020722 |
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9.7354 9.9572 9.0657 92.691 117.057 105.323 P-1 |
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atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Na1 .5 0 .5 .0300 .0487 .0380 .0215 .0280 .0230 .0175 |
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Na2 .1912 .5340 .4432 .56 .0151 .0233 .0130 .0087 .0032 .0090 .0023 |
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Mn1 .74388 .97982 .29542 .98 .01168 .0098 .0107 .0128 .00149 .00516 .00090 |
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Mg1 .74388 .97982 .29542 .01 .01168 .0098 .0107 .0128 .00149 .00516 .00090 |
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Ca1 .74388 .97982 .29542 .01 .01168 .0098 .0107 .0128 .00149 .00516 .00090 |
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Mn2 .99723 .21282 .22004 .94 .01045 .0103 .0107 .0104 .00265 .00545 .00342 |
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Mg2 .99723 .21282 .22004 .06 .01045 .0103 .0107 .0104 .00265 .00545 .00342 |
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Mn3 .86298 .88807 .02950 .88 .00981 .0098 .0093 .0112 .00304 .00566 .00310 |
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Mg3 .86298 .88807 .02950 .10 .00981 .0098 .0093 .0112 .00304 .00566 .00310 |
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V3 .86298 .88807 .02950 .01 .00981 .0098 .0093 .0112 .00304 .00566 .00310 |
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Al3 .86298 .88807 .02950 .01 .00981 .0098 .0093 .0112 .00304 .00566 .00310 |
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Mn4 .57398 .66844 .09774 .99 .00999 .0093 .0091 .0111 .00244 .00485 .00261 |
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Mg4 .57398 .66844 .09774 .01 .00999 .0093 .0091 .0111 .00244 .00485 .00261 |
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Mn5 .71912 .55370 .85346 .99 .01242 .0125 .0113 .0153 .00397 .00813 .00284 |
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Mg5 .71912 .55370 .85346 .01 .01242 .0125 .0113 .0153 .00397 .00813 .00284 |
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Si1 .87449 .27556 .82439 .00920 .0087 .0102 .0101 .0031 .0055 .0040 |
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Si2 .03102 .23894 .60955 .00861 .0085 .0092 .0079 .0025 .0039 .0027 |
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Si3 .20746 .54939 .77372 .00943 .0086 .0088 .0110 .0021 .0050 .0039 |
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Si4 .47814 .75745 .73037 .00925 .0097 .0090 .0093 .0025 .0049 .0038 |
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Si5 .61959 .07757 .89560 .00829 .0081 .0091 .0086 .0029 .0044 .0038 |
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Si6 .60697 .71401 .48355 .37 .00903 .0098 .00979 .00859 .00275 .00542 .00280 |
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As6 .60697 .71401 .48355 .48 .00903 .0098 .00979 .00859 .00275 .00542 .00280 |
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V6 .60697 .71401 .48355 .15 .00903 .0098 .00979 .00859 .00275 .00542 .00280 |
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O1 .7048 .1654 .7947 .0132 .0107 .0153 .0142 .0024 .0072 .0071 |
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O2 .8853 .2267 .6567 .0145 .0118 .0220 .0113 .0053 .0069 .0043 |
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O3 .1110 .4094 .6204 .0133 .0159 .0102 .0104 .0016 .0049 .0020 |
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O4 .3022 .6692 .7062 .0124 .0112 .0131 .0129 .0020 .0065 .0052 |
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O5 .4987 .9265 .7529 .0128 .0138 .0087 .0121 .0012 .0045 .0036 |
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O6 .4645 .7114 .5465 .0142 .0129 .0199 .0099 .0037 .0064 .0032 |
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O7 .8556 .4331 .8222 .0144 .0134 .0108 .0214 .0042 .0101 .0058 |
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O8 .9645 .7248 .0081 .0118 .0112 .0132 .0112 .0056 .0046 .0034 |
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O9 .9535 .1532 .4220 .0123 .0137 .0134 .0087 .0022 .0056 .0019 |
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O10 .8287 .8130 .2469 .0110 .0107 .0121 .0091 .0040 .0036 .0023 |
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O11 .0805 .6058 .8035 .0143 .0148 .0140 .0200 .0063 .0120 .0069 |
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O12 .6649 .4918 .0594 .0114 .0115 .0114 .0103 .0035 .0044 .0038 |
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O13 .3746 .2765 .1181 .0113 .0128 .0120 .0103 .0051 .0059 .0040 |
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O14 .4961 .1480 .9102 .0127 .0128 .0140 .0142 .0062 .0078 .0047 |
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O15 .2404 .9490 .9367 .0112 .0115 .0110 .0104 .0034 .0048 .0044 |
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O16 .6809 .8807 .4750 .0148 .0175 .0130 .0136 .0031 .0081 .0048 |
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O17 .5172 .6042 .2977 .0137 .0142 .0142 .0105 .0017 .0060 .0003 |
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O18 .2568 .3469 .3699 .0149 .0133 .0159 .0165 .0068 .0066 .0069 |
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O19 .0897 .0502 .1728 .0134 .0125 .0153 .0112 .0049 .0044 .0034 |
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H7 .937 .493 .820 .017 |
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H19 .179 .050 .276 .98 .016 |
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F19 .179 .050 .276 .02 .016 |
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