Richterite
Della Ventura G, Robert J-L, Raudsepp M, Hawthorne F C, Welch M D
American Mineralogist 82 (1997) 291-301
Site occupancies in synthetic monoclinic amphiboles: Rietveld structure
refinement and infrared spectroscopy of (nickel, magnesium, cobalt)-richterite
Sample: Co60
_database_code_amcsd 0001883
9.9436 18.029 5.2740 90 104.259 90 C2/m
atom     x     y     z occ
Si1  .2809 .0847 .2937
Si2  .2882 .1711 .8011
Mg1      0 .0897    .5 .37
Co1      0 .0897    .5 .63
Mg2      0 .1787     0 .44
Co2      0 .1787     0 .56
Mg3      0     0     0 .34
Co3      0     0     0 .66
Ca4      0 .2745    .5 .55
Na4      0 .2745    .5 .45
NaA      0 .4809     0 .93
O1   .1156 .0894 .2200
O2   .1146 .1731 .7252
O3   .1156     0 .7091
O4   .3627 .2472 .7740
O5   .3480 .1291 .0880
O6   .3424 .1136 .5946
O7   .3455     0 .3062