Tsepinite-Na Rastsvetaeva R K, Organova N I, Rozhdestvenskaya I V, Shlyukova Z V, Chukanov N V Doklady Chemistry 371 (2000) 52-56 Crystal structure of oxonium mineral of the nenadkevichite-labuntsovite group from Khibiny massif Locality: Khibinpakhchorr mountain, Khibiny massif, Kola Peninsula, Russia _database_code_amcsd 0012504 14.604 14.274 7.933 90 117.40 90 Cm atom x y z occ Biso Na1 .770 0 .475 .47 5.3 Na2 .275 0 .485 .62 6.2 K .082 0 .301 .38 5.7 Wat .082 0 .301 .22 5.7 Ba .892 0 .631 .08 3.2 Sr .015 0 .495 .20 4.2 Fe .015 0 .495 .02 4.2 TiM1 .0097 .7643 .4915 .7 2.3 NbM1 .0097 .7643 .4915 .3 2.3 NbM2 .7624 .7487 .4868 .6 3.1 TiM2 .7624 .7487 .4868 .4 3.1 Si1 .2170 .8896 .7800 1.9 Si2 .6982 .8897 .7498 1.3 Si3 .8108 .8901 .1926 1.2 Si4 .3277 .8896 .2265 1.7 OH31 .507 .809 .985 .32 7.8 KOH31 .507 .809 .985 .03 7.8 OH32 -.008 .821 .001 .26 9.8 OH33 .096 .7601 -.016 .39 8.7 O1 .9164 .7581 .589 1.4 O2 .9306 .8642 .306 2.9 O3 .260 .865 .326 3.9 O4 .2745 .8260 .698 4.5 O5 .4402 .8295 .303 2.0 O6 .3615 0 .252 2.1 O7 .2569 .877 -.002 4.4 O8 .2241 0 .752 3.5 O9 .1182 .7682 .383 3.0 O10 .0941 .8647 .660 2.6 O11 .7623 .8593 .630 .7 O12 .7409 .8352 .270 1.1 O13 .5965 .8304 .683 2.2 O14 .6791 0 .734 2.0 O15 .7733 .8644 .972 1.7 O16 .779 0 .195 3.3 Wat1 .445 0 .691 3.2 Wat2 .023 0 .057 .37 8.7 Wat3 .552 0 .171 .71 9.9 Wat4 -.021 0 .783 .20 7.5