Biraite-(Ce) Konev A, Pasero M, Pushcharovsky D, Merlino S, Kashaev A, Suvorova L, Ushchapovskaya Z, Nartova N, Lebedeva Y, Chukanov N European Journal of Mineralogy 17 (2005) 715-721 Biraite-(Ce), Ce2Fe2+(CO3)(Si2O7), a new mineral from Siberia with a novel structure type Locality: Biraia deposit, Irkutsk district, Siberia, Russia _database_code_amcsd 0007129 6.505 6.744 18.561 90 108.75 90 P2_1/c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ce1 .32745 .28119 .23623 .50 .01034 .01036 .00896 .01289 .00082 .00541 .00017 La1 .32745 .28119 .23623 .28 .01034 .01036 .00896 .01289 .00082 .00541 .00017 Nd1 .32745 .28119 .23623 .12 .01034 .01036 .00896 .01289 .00082 .00541 .00017 Pr1 .32745 .28119 .23623 .04 .01034 .01036 .00896 .01289 .00082 .00541 .00017 Sm1 .32745 .28119 .23623 .01 .01034 .01036 .00896 .01289 .00082 .00541 .00017 Ca1 .32745 .28119 .23623 .03 .01034 .01036 .00896 .01289 .00082 .00541 .00017 Na1 .32745 .28119 .23623 .01 .01034 .01036 .00896 .01289 .00082 .00541 .00017 Ce2 .88569 .86796 .07651 .50 .01232 .01310 .01454 .00968 -.00386 .00415 -.00113 La2 .88569 .86796 .07651 .28 .01232 .01310 .01454 .00968 -.00386 .00415 -.00113 Nd2 .88569 .86796 .07651 .12 .01232 .01310 .01454 .00968 -.00386 .00415 -.00113 Pr2 .88569 .86796 .07651 .04 .01232 .01310 .01454 .00968 -.00386 .00415 -.00113 Sm2 .88569 .86796 .07651 .01 .01232 .01310 .01454 .00968 -.00386 .00415 -.00113 Ca2 .88569 .86796 .07651 .03 .01232 .01310 .01454 .00968 -.00386 .00415 -.00113 Na2 .88569 .86796 .07651 .01 .01232 .01310 .01454 .00968 -.00386 .00415 -.00113 FeM1 .43356 .5055 .07776 .670 .0193 .0136 .0327 .0117 -.0047 .0041 -.0010 MnM1 .43356 .5055 .07776 .11 .0193 .0136 .0327 .0117 -.0047 .0041 -.0010 TiM1 .43356 .5055 .07776 .01 .0193 .0136 .0327 .0117 -.0047 .0041 -.0010 MgM1 .43356 .5055 .07776 .210 .0193 .0136 .0327 .0117 -.0047 .0041 -.0010 C .4041 .9858 .0996 .0128 .010 .014 .015 .0024 .0041 .0012 Si1 .9237 .3573 .0726 .0101 .0113 .0095 .0093 .0004 .0034 .0001 Si2 .8056 .2869 .2186 .0088 .0075 .0094 .0096 -.0005 .0031 .0001 O1 .4221 .1286 .0566 .98 .0201 .020 .025 .015 -.0023 .0052 .0041 F1 .4221 .1286 .0566 .02 .0201 .020 .025 .015 -.0023 .0052 .0041 O2 .2683 -.0092 .1372 .98 .0151 .0106 .021 .0144 -.0016 .0055 -.0022 F2 .2683 -.0092 .1372 .02 .0151 .0106 .021 .0144 -.0016 .0055 -.0022 O3 .5324 .8306 .1091 .98 .0175 .015 .019 .017 .0046 .0041 -.0003 F3 .5324 .8306 .1091 .02 .0175 .015 .019 .017 .0046 .0041 -.0003 O4 .9131 .1870 .0112 .98 .0138 .017 .0151 .0097 -.0007 .0048 -.0017 F4 .9131 .1870 .0112 .02 .0138 .017 .0151 .0097 -.0007 .0048 -.0017 O5 .1538 .4699 .1064 .98 .0195 .019 .023 .015 -.0089 .0044 -.0027 F5 .1538 .4699 .1064 .02 .0195 .019 .023 .015 -.0089 .0044 -.0027 O6 .7266 .5163 .0425 .98 .0155 .016 .015 .016 .0050 .0056 .0030 F6 .7266 .5163 .0425 .02 .0155 .016 .015 .016 .0050 .0056 .0030 O7 .8960 .2275 .1464 .98 .0122 .017 .0123 .0103 .0029 .0083 .0017 F7 .8960 .2275 .1464 .02 .0122 .017 .0123 .0103 .0029 .0083 .0017 O8 .6591 .1164 .2365 .98 .0119 .0102 .0101 .0164 -.0008 .0057 .0015 F8 .6591 .1164 .2365 .02 .0119 .0102 .0101 .0164 -.0008 .0057 .0015 O9 .0266 .3266 .2874 .98 .0135 .0097 .020 .0108 -.0018 .0036 -.0037 F9 .0266 .3266 .2874 .02 .0135 .0097 .020 .0108 -.0018 .0036 -.0037 O10 .6369 .4708 .1914 .98 .0132 .016 .0107 .0137 .0038 .0054 .0012 F10 .6369 .4708 .1914 .02 .0132 .016 .0107 .0137 .0038 .0054 .0012