Takeuchiite Norrestam R, Bovin J-O Zeitschrift fur Kristallographie 181 (1987) 135-149 The crystal structure of takeuchiite, Mg1.71Mn1.29BO5: A combined single crystal X-ray and HRTEM study Locality: Langban mine, Sweden _database_code_amcsd 0010977 27.585 12.561 6.027 90 90 90 Pnnm atom x y z occ Uiso Mg1 0 0 .2483 .84 .0053 Mn1 0 0 .2483 .16 .0053 Mg2 .0476 .4821 0 .29 .0165 Mn2 .0476 .4821 0 .21 .0165 Mn3 0 .5 .5 .0033 Mg4 -.0033 .2773 .2477 .82 .0055 Mn4 -.0033 .2773 .2477 .18 .0055 Mg5 .1683 .5079 .2489 .89 .0056 Mn5 .1683 .5079 .2489 .11 .0056 Mg6 .1626 .0640 .2529 .94 .0062 Mn6 .1626 .0640 .2529 .06 .0062 Mg7 .0763 .4118 0 .0215 Mn8 .0834 .3880 .5 .0042 Mg9 .1589 .2876 0 .69 .0192 Mn9 .1589 .2876 0 .31 .0192 Mn10 .1697 .2867 .5 .0034 Mg11 .2524 .1692 0 .57 .0042 Mn11 .2524 .1692 0 .43 .0042 Mn12 .2523 .1696 .5 .0054 Mg13 .3317 .2872 .2513 .80 .0041 Mn13 .3317 .2872 .2513 .20 .0041 Mn14 .4164 .3933 0 .0042 Mn15 .4163 .3922 .5 .0035 B1 .0717 .1425 0 .0072 B2 .0717 .1425 .5 .0072 B3 .4053 .1463 0 .0075 B4 .4053 .1463 .5 .0075 B5 .2606 .4297 0 .0098 B6 .2606 .4297 .5 .0098 O1 -.0396 .1383 .2477 .0060 O2 .1278 -.0765 .2504 .0069 O3 .1318 .3602 .2814 .0069 O4 .2963 .1460 .2584 .0087 O5 .4643 -.0777 .2168 .0062 O6 .2037 .2085 .2724 .0067 O7 .0466 .2364 0 .0072 O8 .0466 .2364 .5 .0072 O9 .0466 .0462 0 .0072 O10 .0466 .0462 .5 .0072 O11 .1221 .1389 0 .0072 O12 .1221 .1389 .5 .0072 O13 .3810 .0503 0 .0075 O14 .3810 .0503 .5 .0075 O15 .4551 .1513 0 .0075 O16 .4551 .1513 .5 .0075 O17 .3789 .2398 0 .0075 O18 .3789 .2398 .5 .0075 O19 .2837 .3330 0 .0098 O20 .2837 .3330 .5 .0098 O21 .2099 .4351 0 .0098 O22 .2099 .4351 .5 .0098 O23 .2872 .5232 0 .0098 O24 .2872 .5232 .5 .0098