Pertsevite-(F) Schreyer W, Armbruster T, Bernhardt H J, Medenbach O European Journal of Mineralogy 15 (2003) 1007-1018 Pertsevite, a new silication magnesioborate mineral with an end-member composition Mg2BO3F, in kotoite marble from east of Verkhoyansk, Sakha-Yakutia, Russia Locality: east of Verkhoyansk, Sakha-Yakutia, Russia _database_code_amcsd 0007020 20.490 4.571 11.890 90 90 90 Pna2_1 atom x y z occ Biso Mg1 .3780 .5195 .2506 .75 Mg2 .6179 .9879 .2455 .75 Mg3 .2464 .532 .1137 .75 Mg4 .2479 .532 .3903 .75 Mg5 .3784 .517 -.0205 .75 Mg6 .3768 .519 .5256 .75 Mg7 .4850 .995 .1234 .75 Mg8 .5117 .978 -.1227 .75 B1 .3435 .044 .418 .91 .36 Si1 .330 .117 .372 .09 .36 B2 .523 .530 .220 .60 .36 B2A .522 .58 .034 .15 .36 Si2 .5346 .576 .263 .25 .36 B3 .1848 .067 .243 .73 .36 Si3 .2103 .108 .258 .27 .36 B4 .3450 .079 .093 .36 O1 .3339 .766 .1148 .96 O2 .3375 .769 .390 .96 O3 .2033 .769 .256 .96 O4 .3286 .713 -.1505 .96 O5 .1705 .238 .1471 .96 O6 .4619 .750 -.0068 .48 .96 OH6 .4619 .750 -.0068 .16 .96 F6 .4619 .750 -.0068 .36 .96 O7 .5368 .249 .0082 .48 .96 OH7 .5368 .249 .0082 .16 .96 F7 .5368 .249 .0082 .36 .96 O8 .5308 .244 .245 .48 .96 OH8 .5308 .244 .245 .16 .96 F8 .5308 .244 .245 .36 .96 O9 .4013 .213 .1200 .96 O10 .3992 .219 .3856 .96 O11 .1992 .719 -.013 .96 O12 .3018 .211 .0189 .96 O13 .4663 .702 .250 .48 .96 OH13 .4663 .702 .250 .16 .96 F13 .4663 .702 .250 .36 .96 O14 .4239 .243 -.1228 .48 .96 OH14 .4239 .243 -.1228 .16 .96 F14 .4239 .243 -.1228 .36 .96 O15 .5675 .705 .1505 .96 O16 .2884 .317 .250 .48 .96 OH16 .2884 .317 .250 .16 .96 F16 .2884 .317 .250 .36 .96