Ludwigite
Biryukov Y P, Zinnatullin A L, Levashova I O, Shablinskii A P, Bubnova R S,
Vagizov F G, Ugolkov V L, Filatov S K, Pekov I V
Acta Crystallographica B79 (2023) S2052520623006455
Crystal structure refinement, low- and high-temperature X-ray diffraction
and Mossbauer spectroscopy study of the oxoborate ludwigite from the Iten'yurginskoe deposit
Locality: Iten'yurginskoe, Eastern Chukotka, Russia
_database_code_amcsd 0021228
9.2532 12.3025 3.0256 90 90 90 Pbam
atom      x      y  z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mg1       0      0  0      .0077   .010   .008   .005  -.001      0      0
Mg2      .5      0 .5 .477 .0089  .0134  .0055  .0077 -.0005      0      0
Fe2      .5      0 .5 .523 .0089  .0134  .0055  .0077 -.0005      0      0
Mg3   .0021  .2796  0 .978 .0101   .012  .0090  .0094  .0011      0      0
Fe3   .0021  .2796  0 .022 .0101   .012  .0090  .0094  .0011      0      0
Fe4  .73942 .38552 .5  .90 .0065  .0051  .0075  .0071  .0021      0      0
Mg4  .73942 .38552 .5  .02 .0065  .0051  .0075  .0071  .0021      0      0
Al4  .73942 .38552 .5  .08 .0065  .0051  .0075  .0071  .0021      0      0
B     .2733  .3588 .5       .010   .024   .006   .001  -.004      0      0
O1    .8499  .0442 .5       .010   .006   .012   .012   .002      0      0
O2    .3843  .0769  0       .012   .014   .007   .016   .003      0      0
O3    .6253  .1418 .5       .011   .008   .015   .010  -.004      0      0
O4    .1104  .1419  0       .011   .016   .007   .009   .000      0      0
O5    .3498  .2624 .5       .008   .011   .009   .006  -.003      0      0