Arrojadite-(KNa) Camara F, Oberti R, Chopin C, Medenbach O American Mineralogist 91 (2006) 1249-1259 The arrojadite enigma: I. A new formula and a new model for the arrojadite structure Sample: Rapid Creek, Yukon, Canada _database_code_amcsd 0004190 16.5520 10.0529 24.6477 90 106.509 90 Cc atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) KA1 -.0003 .4800 -.2457 .83 2.27 .0017 .0035 .0019 .0002 .0011 .0003 Na1 .0001 .0042 -.0002 2.87 .0033 .0049 .0011 .0007 -.0002 .0001 Na2 .1244 .5176 .1244 2.26 .0038 .0029 .0005 .0010 -.0004 -.0001 Ca -.2367 .2236 .0181 .91 .90 .0009 .0021 .0005 -.0003 .0003 -.0002 Sr -.2367 .2236 .0181 .01 .90 .0009 .0021 .0005 -.0003 .0003 -.0002 NaB1 -.2947 .5663 -.0439 1.93 .0015 .0056 .0008 .0005 .0000 .0007 NaB2 -.1220 .4855 -.1228 1.89 .0030 .0031 .0005 .0007 .0000 .0001 NaA2 -.0190 .1859 .2288 2.02 NaA2x .0093 .1754 .2734 .01 2.00 FeM1 -.2247 .8853 .0284 .9 1.08 .0009 .0021 .0007 .0002 .0004 .0003 MnM1 -.2247 .8853 .0284 .1 1.08 .0009 .0021 .0007 .0002 .0004 .0003 FeM2a -.2893 .4803 -.2295 .9 .92 .0010 .0022 .0004 -.0003 .0001 .0000 MnM2a -.2893 .4803 -.2295 .1 .92 .0010 .0022 .0004 -.0003 .0001 .0000 MgM2b .2859 .5144 .2344 .7 .92 .0009 .0023 .0004 .0000 .0001 .0001 FeM2b .2859 .5144 .2344 .27 .92 .0009 .0023 .0004 .0000 .0001 .0001 MnM2b .2859 .5144 .2344 .03 .92 .0009 .0023 .0004 .0000 .0001 .0001 MgM3a -.1125 -.0187 -.1367 .7 .78 .0008 .0018 .0003 -.0001 .0001 -.0001 FeM3a -.1125 -.0187 -.1367 .27 .78 .0008 .0018 .0003 -.0001 .0001 -.0001 MnM3a -.1125 -.0187 -.1367 .03 .78 .0008 .0018 .0003 -.0001 .0001 -.0001 MgM3b .1036 1.0144 .1417 .7 .78 .0008 .0017 .0004 .0000 .0001 -.0001 FeM3b .1036 1.0144 .1417 .27 .78 .0008 .0017 .0004 .0000 .0001 -.0001 MnM3b .1036 1.0144 .1417 .03 .78 .0008 .0017 .0004 .0000 .0001 -.0001 FeM4a -.0239 .2491 .0973 .9 .79 .0007 .0020 .0004 .0001 .0001 .0001 MnM4a -.0239 .2491 .0973 .1 .79 .0007 .0020 .0004 .0001 .0001 .0001 MgM4b .0238 .7513 -.0926 .7 .76 .0007 .0019 .0004 .0001 .0001 .0000 FeM4b .0238 .7513 -.0926 .27 .76 .0007 .0019 .0004 .0001 .0001 .0000 MnM4b .0238 .7513 -.0926 .03 .76 .0007 .0019 .0004 .0001 .0001 .0000 FeM5a .0297 .2540 -.0973 .9 .75 .0007 .0021 .0003 .0000 .0001 .0000 MnM5a .0297 .2540 -.0973 .1 .75 .0007 .0021 .0003 .0000 .0001 .0000 FeM5b -.0360 .7407 .1016 .9 .77 .0007 .0021 .0003 .0000 .0001 .0000 MnM5b -.0360 .7407 .1016 .1 .77 .0007 .0021 .0003 .0000 .0001 .0000 FeM6a -.2046 .6943 .1501 .9 .95 .0010 .0029 .0003 .0000 .0001 .0001 MnM6a -.2046 .6943 .1501 .1 .95 .0010 .0029 .0003 .0000 .0001 .0001 FeM6b -.3016 .8083 -.1471 .9 1.06 .0010 .0036 .0003 .0001 .0001 .0000 MnM6b -.3016 .8083 -.1471 .1 1.06 .0010 .0036 .0003 .0001 .0001 .0000 FeM7a -.2866 .2072 -.1525 .9 .86 .0008 .0026 .0003 -.0003 .0002 .0001 MnM7a -.2866 .2072 -.1525 .1 .86 .0008 .0026 .0003 -.0003 .0002 .0001 FeM7b -.2222 .6975 -.3402 .9 1.17 .0011 .0041 .0003 .0007 .0001 -.0001 MnM7b -.2222 .6975 -.3402 .1 1.17 .0011 .0041 .0003 .0007 .0001 -.0001 Al -.0044 .4995 .0016 .59 .0006 .0015 .0003 .0000 .0001 .0000 P1 -.1165 1.0069 .1344 .65 .0007 .0016 .0003 -.0001 .0002 -.0001 P1x -.4217 .5030 -.1604 .76 .0008 .0019 .0003 -.0001 .0002 -.0001 P2a -.1338 .4644 .0770 .65 .0006 .0015 .0003 -.0001 .0002 -.0001 P2b .1256 .5290 -.0741 .62 .0006 .0016 .0003 .0000 .0002 .0000 P3a -.1303 .7454 -.0397 .60 .0005 .0016 .0003 .0002 .0001 .0001 P3b -.3785 .7509 .0414 .60 .0006 .0016 .0003 .0000 .0001 .0000 P4a -.1075 .2343 -.0462 .60 .0006 .0016 .0002 -.0001 .0001 .0000 P4b .0984 .7686 .0497 .59 .0006 .0015 .0003 .0000 .0001 .0000 P5a .1308 .7312 .2145 .66 .0007 .0016 .0003 .0000 .0001 .0000 P5b -.1346 .2687 -.2097 .65 .0006 .0018 .0003 .0000 .0001 .0000 P6a .1376 .2992 .2101 .79 .0008 .0017 .0003 .0000 .0000 .0000 P6b -.1389 .7007 -.2043 .70 .0007 .0015 .0003 -.0001 .0001 .0000 O1a -.4776 .4360 -.1287 1.28 .0013 .0027 .0008 -.0002 .0006 .0002 O1b -.0286 .0620 .1357 .94 .0007 .0023 .0006 -.0002 .0002 .0001 O2a -.3911 .6363 -.1328 .94 .0010 .0021 .0005 -.0001 .0003 -.0002 O2b -.1144 .8544 .1381 .99 .0010 .0017 .0006 -.0003 .0004 -.0001 O3 .3569 .5701 .1826 1.37 .0015 .0038 .0006 -.0006 .0006 -.0006 O4 -.1819 1.0440 .0786 1.24 .0012 .0031 .0004 .0000 -.0001 .0002 O3x -.4792 .5233 -.2231 1.57 .0015 .0052 .0004 .0000 .0000 .0000 O4x -.3479 .4194 -.1654 1.36 .0015 .0028 .0008 .0008 .0008 .0003 O5a -.0534 .4443 .0570 .81 .0007 .0020 .0004 -.0001 .0003 .0001 O5b .0480 .5540 -.0524 .84 .0009 .0019 .0004 .0003 .0003 .0001 O6a -.1229 .5931 .1110 .96 .0009 .0019 .0006 -.0004 .0004 -.0003 O6b .1131 .4011 -.1084 .93 .0009 .0019 .0006 -.0002 .0004 -.0003 O7a -.1337 .3374 .1133 .89 .0008 .0021 .0005 .0000 .0004 .0003 O7b -.3718 .1554 -.1081 .96 .0009 .0021 .0005 .0001 .0003 .0003 O8a -.2142 .4590 .0288 1.12 .0007 .0036 .0005 -.0001 -.0001 .0001 O8b -.2922 1.0222 -.0255 1.07 .0009 .0027 .0005 .0001 -.0001 .0000 O9a -.0812 .8342 -.0699 .98 .0009 .0026 .0005 .0001 .0004 .0001 O9b -.4184 .6663 .0787 .91 .0009 .0020 .0005 -.0001 .0003 .0002 O10a -.0997 .6022 -.0373 .81 .0007 .0024 .0003 .0001 .0001 .0001 O10b .0901 .3952 .0395 .82 .0009 .0014 .0004 .0003 .0001 .0000 O11a -.1178 .7998 .0211 1.08 .0010 .0038 .0003 .0008 .0002 .0000 O11b -.3979 .6899 -.0175 1.03 .0013 .0026 .0003 .0004 .0001 -.0002 O12a -.2248 .7500 -.0684 1.18 .0006 .0033 .0006 -.0002 .0000 .0004 O12b -.2812 .7545 .0682 1.04 .0006 .0029 .0005 .0002 .0001 .0003 O13a -.0516 .3576 -.0474 .74 .0008 .0012 .0004 -.0003 .0001 .0000 O13b .0403 .6464 .0484 .75 .0008 .0016 .0004 -.0001 .0002 -.0001 O14a -.0731 .1297 -.0795 .83 .0010 .0018 .0004 -.0002 .0002 -.0003 O14b .0587 .8750 .0791 .85 .0009 .0017 .0005 .0000 .0003 -.0002 O15a -.0953 .1857 .0147 .81 .0010 .0022 .0003 -.0002 .0001 .0000 O15b .1000 .8127 -.0092 1.10 .0013 .0030 .0003 -.0006 .0002 .0000 O16a -.2010 .2648 -.0717 .96 .0006 .0031 .0004 .0000 .0001 -.0001 O16b .1878 .7331 .0842 1.01 .0006 .0032 .0004 .0002 .0000 .0000 O17a .0515 .6792 .1718 1.03 .0009 .0026 .0004 -.0002 .0000 .0001 O17b -.0531 .3193 -.1684 1.02 .0008 .0032 .0004 -.0003 -.0001 .0000 O18a .1326 .3139 -.2266 1.21 .0013 .0040 .0003 .0002 .0001 -.0001 O18b -.1417 .3232 -.2681 1.09 .0014 .0031 .0003 -.0005 .0002 .0001 O19a .1355 .8838 .2105 1.47 .0020 .0018 .0005 -.0005 -.0001 .0001 O19b -.1352 .1146 -.2091 1.19 .0016 .0015 .0005 .0000 .0000 .0000 O20a .2077 .6725 .1987 1.13 .0009 .0036 .0005 .0003 .0003 .0001 O20b -.2091 .3205 -.1893 1.08 .0010 .0028 .0006 .0002 .0003 .0000 O21a .0520 .3357 .1697 1.14 .0010 .0028 .0005 .0004 -.0001 -.0001 O21b -.0564 .6617 -.1609 1.04 .0008 .0028 .0004 .0002 -.0002 -.0002 O22a .1394 .6572 -.2309 2.19 .0029 .0056 .0004 -.0023 -.0002 .0006 O22b -.1337 .6634 -.2634 1.31 .0017 .0033 .0003 .0007 .0001 -.0001 O23a .1467 .1465 .2088 1.13 .0015 .0017 .0005 -.0001 .0000 -.0001 O23b -.1522 .8524 -.2013 1.02 .0013 .0015 .0004 .0004 -.0001 -.0001 O24a .2090 .3647 .1906 1.86 .0011 .0044 .0011 -.0010 .0001 .0011 O24b -.2126 .6273 -.1898 1.46 .0011 .0034 .0007 -.0007 .0000 .0004 OW1 -.2357 1.0031 -.1348 .97 1.21 .0011 .0032 .0006 .0000 .0004 .0000 FW1 -.2357 1.0031 -.1348 .03 1.21 .0011 .0032 .0006 .0000 .0004 .0000 OW2 -.2734 .5004 .1370 1.17 .0011 .0032 .0005 -.0002 .0002 -.0001 HW1 -.227 1.008 -.100 .97 1.20 HW2 -.277 .498 .098 1.20 HO3x -.512 .548 -.269 1.20