Ikranite Ekimenkova I A, Rastsvetaeva R K, Chukanov N V, Khasanov S S Doklady Chemistry 371 (2000) 65-69 Crystal structure of an oxonium-containing analogue of eudialyte Locality: Karnasurt Mountains, Lovozero massif, Kola Peninsula, Russia _database_code_amcsd 0012505 14.167 14.167 30.081 90 90 120 R3m atom x y z occ Biso Zr .3332 .1666 .1669 1.86 Ca .4052 .3345 .3337 .550 2.21 Mn .4052 .3345 .3337 .233 2.21 Ce .4052 .3345 .3337 .083 2.21 Na .4052 .3345 .3337 .075 2.21 Sr .4052 .3345 .3337 .059 2.21 Si1 .0832 .5416 .2573 2.1 Si2 .1406 .0703 .0804 2.0 Si3 .0550 .3249 .2366 1.5 Si4 .2056 .4112 .0788 2.7 Si5 .5266 .2633 .2538 1.7 Si6 -.0073 .6052 .0971 1.6 O1 .0218 .5109 .3017 3.9 O2 .4127 .3092 .1278 2.3 O3 .4021 .0342 .0451 4.1 O4 .0359 .2993 .2881 4.0 O5 .0939 .3738 .1073 2.7 O6 .3912 .4377 .2260 2.5 O7 .2584 .0284 .2053 3.1 O8 .4452 .2226 .2938 5.8 O9 .1765 .3530 .2202 2.5 O10 .1912 .0956 .1259 3.2 O11 .1808 .3616 .0284 3.6 O12 .6060 .3940 .2537 3.1 O13 .2208 .1104 .0389 4.0 O14 .3951 .6049 .2540 4.8 O15 .0185 .5092 .1046 4.0 O16 .0617 .1234 .0740 2.5 O17 .2725 .5450 .0709 5.0 O18 .4692 .2346 .2045 3.4 Fe .1573 .3146 .3349 .70 4.6 ZrM1 1/3 2/3 .0306 .086 1.9 NbM1 1/3 2/3 .0306 .032 1.9 TiM1 1/3 2/3 .0306 .032 1.9 ZrM2 1/3 2/3 .2875 .163 2.8 NbM2 1/3 2/3 .2875 .068 2.8 TiM2 1/3 2/3 .2875 .068 2.8 Zr 1/3 2/3 .2271 .15 2.2 Si7 1/3 2/3 .0859 .30 1.7 Nal .5324 .4676 -.003 .30 9.3 Na2a .5681 .4319 .1730 .70 1.3 Na2b .5450 .4550 .1789 .30 2.6 Na3 .1948 .0974 .2874 .65 2.5 K3 .1948 .0974 .2874 .10 2.5 Sr3 .1948 .0974 .2874 .05 2.5 Na .1110 .2220 .1528 .495 2.2 H3O .1110 .2220 .1528 .165 2.2 Na2 .4648 .2324 .0484 .615 1.4 H3O2 .4648 .2324 .0484 .205 1.4 H3O3 .0808 .1616 .1663 .34 3 H3O4 .492 .246 .035 .18 1.2 H3O5 .134 .067 .279 .20 1.9 OH1 1/3 2/3 .137 .30 7 OH2 .391 .609 .159 .22 4 OH3 .259 .518 .3307 .70 6.5 OH4 .420 .580 -.0009 .70 7.1 Cl 1/3 2/3 .150 .26 5.3 Watla .0 .0 .2250 .7 1.5 Watlb .0 .0 .199 .3 1.4 Wat2 2/3 1/3 .0999 2.5