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: Co100
_database_code_amcsd 0001885
9.9724 18.069 5.2775 90 104.261 90 C2/m
atom     x     y     z occ
Si1  .2801 .0836 .2885
Si2  .2906 .1694 .8125
Co1      0 .0895    .5
Co2      0 .1797     0
Co3      0     0     0
Ca4      0 .2751    .5 .47
Na4      0 .2751    .5 .53
NaA      0 .4805     0
O1   .1121 .0876 .2174
O2   .1251 .1746 .7253
O3   .1145     0 .7019
O4   .3600 .2459 .7746
O5   .3508 .1290 .0945
O6   .3428 .1140 .5873
O7   .3463     0 .3104