Arrojadite-(KFe) Moore P B, Araki T, Merlino S, Mellini M, Zanazzi P F American Mineralogist 66 (1981) 1034-1049 The arrojadite-dickinsonite series, KNa4Ca(Fe,Mn)14Al(OH)2(PO4)12: Crystal structure and crystal chemistry sample NM Locality: Nancy mine, North Groton, New Hampshire, USA _database_code_amcsd 0000846 24.692 10.031 16.453 90 105.78 90 A2/a atom x y z occ Al1 0 .5 0 Fe1 .47321 .89531 .22048 Fe2 .26656 .00954 .21173 Fe3 .14023 .01559 .10524 Fe4 .40367 .25041 .02298 Fe5 .39990 .74383 .03394 Fe6 .35132 .70124 .20352 Fe7 .34199 .29518 .21822 Ca .48587 .22363 .23404 .5 Na1 .11986 .51637 .13523 Na2 0 0 0 .5 Na3 .25 .1248 0 .5 Na4 .4560 .9448 .2037 .5 K .25 .5090 0 P1 .36662 .01006 .11457 .5 P2 .33440 .99720 .08030 .5 P3 .42435 .46788 .13165 P4 .03946 .25200 .12680 P5 .04849 .76821 .10200 P6 .21262 .72485 .12932 P7 .20536 .30030 .14028 O1 .3677 .0625 .0258 O2 .3633 -.1412 .1122 O3 .3179 .0734 .1382 .5 O4 .4220 .0469 .1821 .5 O5 .2718 .9540 .0224 .5 O6 .3231 .0860 .1479 .5 O7 .4456 .4443 .0519 O8 .3909 .5970 .1207 O9 .3872 .3430 .1317 O10 .4725 .4678 .2131 O11 .0752 .1662 .0843 O12 .0367 .3958 .0950 O13 -.0199 .1897 .1101 O14 .0644 .2542 .2238 O15 .0489 .6431 .0458 O16 .0803 .8734 .0636 O17 -.0114 .8142 .0967 O18 .0793 .7371 .1939 O19 .1712 .6753 .0486 O20 .2709 .6765 .1296 O21 .2105 .8783 .1348 O22 .1952 .6648 .2057 O23 .1646 .3456 .0562 O24 .2644 .3551 .1456 O25 .2055 .1470 .1443 O26 .1847 .3561 .2151 F .1395 .0035 .2301