Richterite
Della Ventura G, Robert J-L, Raudsepp M, Hawthorne F C
American Mineralogist 78 (1993) 633-640
Site occupancies in monoclinic amphiboles: Rietveld structure refinement of
synthetic magnesium cobalt potassium richterite
Sample: KCo100
Atomic parameters from ICSD
_database_code_amcsd 0001584
10.1166 18.066 5.2752 90 104.846 90 C2/m
atom     x     y     z occ Biso
Si1  .2726 .0864 .3008      0.4
Si2  .2912 .1710 .8051      0.4
Co1      0 .0899    .5      0.6
Co2      0 .1808     0      0.6
Co3      0     0     0      0.6
Na       0 .2742    .5  .5  0.9
Ca       0 .2742    .5  .5  0.9
K    .0202    .5 .0120  .5  2.3
O1   .1066 .0890 .2166      0.8
O2   .1227 .1722 .7199      0.8
OH3  .1085     0 .7256      0.8
O4   .3607 .2413 .7867      0.8
O5   .3427 .1317 .1025      1.1
O6   .3443 .1133 .5956      1.1
O7   .3325     0 .3202      1.2