Richterite
Hawthorne F C, Della Ventura G, Robert J-L, Welch M D, Jenkins D M
American Mineralogist 82 (1997) 708-716
A Rietveld and infrared study of synthetic amphiboles along the
potassium-richterite-tremolite join
Sample: Kr80
_database_code_amcsd 0001915
10.0209 18.001 5.2730 90 104.786 90 C2/m
atom     x     y     z occ
Si1  .2786 .0855 .3007
Si2  .2819 .1700 .8021
Mg1      0 .0900    .5
Mg2      0 .1791     0
Mg3      0     0     0
Ca4      0 .2749    .5  .6
Na4      0 .2749    .5  .4
KA    .015    .5  .029  .8
O1   .1116 .0885 .2177
O2   .1077 .1716 .7229
O3   .1073     0 .7160
O4   .3534 .2483 .7854
O5   .3364 .1296 .0904
O6   .3369 .1139 .5994
O7   .3321     0 .3122