Vermiculite de la Calle C, Pezerat H, Gasperin M Journal de Physique 38 (1977) 128-133 Problemes d'ordre-desordre dans les vermiculites structure du mineral calcique hydrate a 2 couches _cod_database_code 1001031 _database_code_amcsd 0012759 5.351 9.262 15.03 90 96.83 90 C2/m atom x y z occ Si1 .394 .167 .183 .691 Al1 .394 .167 .183 .294 Fe1 .394 .167 .183 .015 Mg1 0 .167 0 .674 Al2 0 .167 0 .168 Fe2 0 .167 0 .021 Fe3 0 .167 0 .028 Ti1 0 .167 0 .014 Mg2 0 .5 0 .674 Al3 0 .5 0 .168 Fe4 0 .5 0 .021 Fe5 0 .5 0 .028 Ti2 0 .5 0 .014 O1 .855 0 .064 O2 .353 .167 .077 O3 .138 .231 .222 O4 .444 0 .216 Ca1 0 .333 .5 .115 Ca2 0 .036 .5 .1 O5 .12 .141 .4 .22 O6 .27 .355 .408 .11 O7 .45 .5 .342 .2 O8 .45 0 .49 .2 O9 .27 .228 .41 .15 O10 .125 .5 .391 .22