Fluorcalciobritholite
Pekov I V, Pasero M, Yaskovskaya A N, Chukanov N V, Pushcharovsky D Y,
Merlino S, Zubkova N V, Kononkova N N, Men'shikov Y P, Zadov A E
European Journal of Mineralogy 19 (2007) 95-103
Fluorcalciobritholite, (Ca,REE)5[(Si,P)O4]3F, a new mineral: description and
crystal chemistry
Locality: Mount Kukisvumchorr, Khibiny alkaline complex, Kola Peninsula, Russia
_database_code_amcsd 0007198
9.580 9.580 6.985 90 90 120 P6_3/m
atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca1 1/3 2/3 .0006 .654 .0311 .0367 .0367 .0200 .0183 0 0
Ce1 1/3 2/3 .0006 .161 .0311 .0367 .0367 .0200 .0183 0 0
La1 1/3 2/3 .0006 .094 .0311 .0367 .0367 .0200 .0183 0 0
Nd1 1/3 2/3 .0006 .045 .0311 .0367 .0367 .0200 .0183 0 0
Y1 1/3 2/3 .0006 .031 .0311 .0367 .0367 .0200 .0183 0 0
Pr1 1/3 2/3 .0006 .014 .0311 .0367 .0367 .0200 .0183 0 0
Ca2 .2487 .0107 .25 .566 .0330 .0366 .0310 .0258 .0126 0 0
Ce2 .2487 .0107 .25 .203 .0330 .0366 .0310 .0258 .0126 0 0
La2 .2487 .0107 .25 .118 .0330 .0366 .0310 .0258 .0126 0 0
Nd2 .2487 .0107 .25 .057 .0330 .0366 .0310 .0258 .0126 0 0
Y2 .2487 .0107 .25 .039 .0330 .0366 .0310 .0258 .0126 0 0
Pr2 .2487 .0107 .25 .017 .0330 .0366 .0310 .0258 .0126 0 0
Si .3718 .4001 .25 .650 .0261 .028 .031 .022 .017 0 0
P .3718 .4001 .25 .350 .0261 .028 .031 .022 .017 0 0
O1 .4677 .5906 .25 .043 .037 .032 .056 .014 0 0
O2 .4866 .3255 .25 .037 .036 .057 .030 .032 0 0
O3 .2563 .3432 .4310 .054 .048 .098 .034 .049 .013 .028
F 0 0 .25 .092 .058 .058 .159 .029 0 0
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