Johillerite Keller P, Hess H Neues Jahrbuch fur Mineralogie, Monatshefte 1988 (1988) 395-404 Die kristallstrukturen von o'danielit, Na(Zn,Mg)3H2(AsO4)3, und johillerit, Na(Mg,Zn)3Cu(AsO4)3 Locality: Tsumeb, Namibia _database_code_amcsd 0014830 11.870 12.755 6.770 90 113.42 90 C2/c atom x y z occ Biso Na 0 .0084 .25 1.89 Mg1 .5 .2384 .25 .883 .62 Zn1 .5 .2384 .25 .117 .62 Mg2 .2859 .3437 .3739 .883 .58 Zn2 .2859 .3437 .3739 .117 .58 Cu 0 .4973 .25 1.27 As1 0 .2875 .25 .90 As2 .2288 .1144 .1235 .74 O1 .3377 .4988 .3904 1.65 O2 .3799 .1067 .1832 1.09 O3 .1065 .3792 .2639 1.28 O4 .3444 .3289 .1196 .99 O5 .2143 .1899 .3190 1.25 O6 .0364 .2141 .4726 1.06