Monteregianite-(Y)
Ghose S, Sen Gupta P K, Campana C F
American Mineralogist 72 (1987) 365-374
Symmetry and crystal structure of monteregianite, Na4K2Y2Si16O38.10H2O, a
double-sheet silicate with zeolitic properties
Note: Several bond lengths cannot be reproduced with this data, but the authors
no longer have the original data, so they cannot check
_database_code_amcsd 0001072
9.512 23.956 9.617 90 93.85 90 P2_1/n
atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
K1 .0685 .2488 .5702 .62 .0558 .0257 .0458 .0074 .0148 .0045
K2 .541 .2478 .047 .38 .0387 .0316 .0380 -.0104 .0122 -.0062
Na1 .3713 .4991 .6312 .95 .0167 .0219 .0158 -.0019 .0036 -.0046
Na2A .5 .5 0 .47 .0111 .0257 .0186 .0038 .0083 .0032
Na2B 0 .5 .5 .45 .0109 .0224 .0193 .0004 .0066 .0007
YCe -.25645 .49845 .74445 .0022 .0053 .0057 -.0001 .0017 -.0002
Si1 -.2661 .18159 .7344 .0051 .0083 .0083 .0006 .0019 .0000
Si2A -.4972 .38752 .2288 .0035 .0108 .0082 -.0005 .0035 .0000
Si2B .2275 .38831 -.4931 .0037 .0118 .0084 -.0003 .0045 -.0007
Si3 -.4548 .38870 .5524 .0030 .0120 .0082 .0006 .0008 -.0009
Si4 -.2553 .31464 .7465 .0044 .0092 .0067 -.0001 .0009 -.0008
Si5A .2269 .11133 -.4953 .0044 .0125 .0077 -.0009 .0032 -.0003
Si5B .4979 .11160 .2246 .0047 .0125 .0078 -.0007 .0034 .0005
Si6 -.4521 .10614 .5519 .0046 .0133 .0070 -.0001 .0009 .0003
O1 -.2588 .2481 .7358 .0165 .0084 .0207 -.0036 .0000 -.0015
O2A -.6183 .3414 .1882 .0075 .0204 .0186 -.0060 .0061 -.0050
O2B .2029 .3384 -.6097 .0262 .0219 .0144 -.0063 .0093 -.0071
O3 -.3907 .1646 .6230 .0108 .0200 .0247 .0001 -.0075 -.0063
O4A .1264 .1277 -.3711 .0072 .0185 .0112 -.0009 .0084 -.0030
O4B -.3769 .1272 .1274 .0098 .0162 .0118 -.0036 .0054 -.0008
O5A -.4349 .3718 .3891 .0215 .0222 .0068 .0062 .0021 -.0021
O5B .3827 .3798 -.4176 .0039 .0362 .0219 -.0019 .0015 .0083
O6A .4517 .4501 .2176 .0097 .0161 .0203 .0034 .0029 .0016
O6B .2110 .4491 .4465 .0175 .0166 .0190 .0038 .0067 .0054
O7 -.4038 .4494 .5892 .0151 .0150 .0161 -.0014 .0015 -.0038
O8 -.3758 .3390 .6428 .0224 .0179 .0189 .0053 -.0089 .0017
O9A -.2757 .3320 .9063 .0296 .0182 .0108 -.0009 .0107 -.0037
O9B .8934 .3343 -.2989 .0090 .0274 .0376 -.0095 .0130 -.0050
O10A -.4379 .1155 .3852 .0202 .0511 .0092 -.0109 .0008 -.0004
O10B .3843 .1067 -.4185 .0038 .0320 .0177 -.0004 .0041 .0001
O11A .6829 .4428 -.0799 .0125 .0225 .0119 .0039 .0080 .0091
O11B -.0778 .4450 .6889 .0165 .0197 .0235 .0127 .0134 .0061
O12 -.3704 .0540 .6113 .0223 .0149 .0421 .0053 -.0083 .0060
O13W1 .8428 .4480 .3443 .0260 .0914 .0583 .0061 .0008 -.0468
O14W2 .3238 .4521 .8570 .0532 .0704 .0293 -.0342 .0064 -.0026
O15W3 .622 .2492 .359 .95 .0715 .0374 .0671 .0034 -.0020 -.0029
O16W4 .891 .187 .356 .46 .0337 .2355 .0435 .0493 -.0199 -.0613
O17W5 .383 .182 .865 .35 .0273 .1617 .0395 .0155 -.0030 -.0390
O18W6 .633 .750 -.610 .37 .1136 .0273 .1160 -.0003 -.0549 -.0050
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