Lovdarite Merlino S European Journal of Mineralogy 2 (1990) 809-817 Lovdarite, K4Na12(Be8Si28O72).18H2O, a zeolite-like mineral: structural features and OD character _database_code_amcsd 0006403 39.576 6.9308 7.1526 90 90 90 Pma2 atom x y z Biso K .3860 .0417 .1828 1.98 Na1 1/4 .6098 .2437 1.95 Na2 1/4 .6217 .7683 1.97 Na3 .1283 .8542 .6990 2.18 Na4 .0069 .2840 .8652 6.10 Si1 .2113 .0504 .2770 .73 Si2 .2113 .0497 .7179 .84 Si3 .1952 .3671 -.0008 .77 Si4 .1248 .5026 -.0269 .89 Si5 .0582 .5267 .1399 .92 Si6 .0333 .2593 .4469 .79 Si7 .0458 .8202 .4588 .87 Be1 .1805 .7820 .0050 .47 Be2 .0670 .5415 .7334 1.0 O1 1/4 -.0319 .2723 .61 O2 .2103 .2603 .1857 1.35 O3 .1858 -.0960 .1901 1.12 O4 .2023 .0905 .5007 1.33 O5 1/4 -.0324 .7287 1.20 O6 .2106 .2624 .8147 1.14 O7 .1858 -.1014 .8030 1.15 O8 .2065 .5870 .0011 .77 O9 .1540 .3356 .0027 1.33 O10 .1409 .7122 -.0041 1.25 O11 .0979 .4563 .1463 1.00 O12 .1057 .4735 .7794 1.34 O13 .0355 .3608 .2493 1.22 O14 .0563 .7205 .2606 1.89 O15 .0448 .5539 -.0671 1.40 O16 .0514 .0501 .4226 1.13 O17 .0493 .3782 .6145 1.51 O18 -.0060 .2198 .5039 1.43 O19 .0678 -.2501 .6341 .88 Wat1 .2115 .5643 .5123 2.17 Wat2 .1438 .6958 .4247 2.38 Wat3 .1290 .1820 .5459 2.70 Wat4 .0744 .0616 .8790 3.91 Wat5 0 0 .0134 8.03