Marianoite
Chakhmouradian A R, Mitchell R H, Burns P C, Mikhailova Y, Reguir E P
The Canadian Mineralogist 46 (2008) 1023-1032
Marianoite, a new member of the cuspidine group from the Prairie Lake
silicocarbonatite, Ontario
Note: ordering of elements in M1 and M2 could not be determined
Locality: Prairie Lake silicocarbonatite, Ontario, Canada
_database_code_amcsd 0019475
10.8459 10.2260 7.2727 90 109.332 90 P2_1
atom     x     y     z  occ  Uiso
Na1  .1306 .5813 .4467      .0135
Na2  .6243 .2359 .6912      .0145
Ca1  .3530 .3468 .8003      .0117
Ca2  .1316 .5790 .9463      .0138
Ca3  .6551 .8490 .7006      .0129
Ca4  .1537 .9684 .4478      .0154
NbM1 .3661 .7193 .8045 .485 .0067
ZrM1 .3661 .7193 .8045  .45 .0067
TiM1 .3661 .7193 .8045 .045 .0067
FeM1 .3661 .7193 .8045  .04 .0067
MgM1 .3661 .7193 .8045 .015 .0067
HfM1 .3661 .7193 .8045 .005 .0067
NbM2 .8413 .4574 .0535 .485 .0093
ZrM2 .8413 .4574 .0535  .45 .0093
TiM2 .8413 .4574 .0535 .045 .0093
FeM2 .8413 .4574 .0535  .04 .0093
MgM2 .8413 .4574 .0535 .015 .0093
HfM2 .8413 .4574 .0535 .005 .0093
Si1  .5721 .5315 .6359      .0083
Si2  .4204 .0399 .8038      .0088
Si3  .9345 .7792 .1238      .0084
Si4  .0597 .2809 .4365      .0105
O1   .4793 .4073 .6178      .0116
O2   .0104 .1383 .3495      .0170
O3   .5183 .6652 .6990      .0188
O4   .4949 .1653 .9178      .0138
O5   .4910 .9025 .8791      .0122
O6   .9724 .4038 .3210      .0164
O7   .7237 .5027 .7729      .0160
O8   .2671 .0427 .7912      .0151
O9   .2062 .3067 .4793      .0227
O10  .9603 .6298 .0741      .0148
O11  .0390 .8813 .0875      .0192
O12  .2540 .7829 .9537      .0157
O13  .0223 .2923 .6374      .0175
O14  .5878 .5622 .4213      .0220
O15  .7928 .8362 .0224      .0154
O16  .2853 .5593 .7754      .0137
O17  .2748 .7841 .5635      .0131
F    .2598 .5563 .2536      .0091