Kentbrooksite Johnsen O, Grice J D, Gault R A European Journal of Mineralogy 10 (1998) 207-219 Kentbrooksite from the Kangerdlugssuaq intrusion, East Greenland, a new Mn-REE-Nb-F end-member in a series within the eudialyte group: Description and crystal structure Locality: Kangerdlugssuaq intrusion, East Greenland _database_code_amcsd 0006713 14.1686 14.1686 30.0847 90 90 120 R3m atom x y z occ Uiso CaM1 .5940 .9257 .1674 .545 .016 MnM1 .5940 .9257 .1674 .2967 .016 NaM1 .5940 .9257 .1674 .055 .016 MnM2 .8179 -.8179 .1693 .6333 .014 FeM2 .8179 -.8179 .1693 .1733 .014 AlM2 .8179 -.8179 .1693 .0433 .014 MgM2 .8179 -.8179 .1693 .0167 .014 FeM2a .8437 -.8437 .1643 .09 .03 NbM3 0 0 -.1281 .55 .14 ZrM3 0 0 -.1281 .12 .14 TiM3 0 0 -.1281 .1 .14 SiM4 0 0 .0779 .84 .011 SiM4a 0 0 .1167 .26 .03 Na1a .2223 -.2223 .0155 .6922 .033 Na1b .2499 -.2499 -.0006 .6922 .066 Na2 .4443 -.4443 -.6787 .6922 .022 Na3a .0890 -.0890 .2047 .6922 .070 Na3b .1150 -.1150 .2156 .6922 .035 Na .5670 -.5670 .1204 .5633 .016 Y .5670 -.5670 .1204 .14 .016 K .5670 -.5670 .1204 .1 .016 Sr .5670 -.5670 .1204 .05 .016 Na5 .7387 -.7387 .3139 .6922 .063 Zr .4980 -.4980 0 .9367 .009 Hf .4980 -.4980 0 .02 .009 Ti .4980 -.4980 0 .0433 .009 Si1 .2628 -.2628 .2489 .014 Si2 .4036 -.4036 .0875 .017 Si3 .5394 -.5394 .2445 .011 Si4 .1247 -.1247 .0920 .010 Si5 .9460 .6764 .2632 .009 Si6 .7230 .0626 .0698 .010 O1 .3952 -.3952 .2451 .023 O2 .2217 -.2217 .2077 .032 O3 .2349 -.2349 .2966 .033 O4 .2713 -.2713 .0923 .029 O5 .4472 -.4472 .1252 .035 O6 .0942 -.0942 .3713 .030 O7 .6098 .0380 .2742 .015 O8 .5160 -.5160 .1959 .015 O9 .6044 -.6044 .2484 .023 O10 .7160 .9453 .0598 .025 O11 .1551 -.1551 .1385 .017 O12 .0596 -.0596 .1004 .036 O13 .3020 .8979 -.6268 .022 O14 .7037 .0743 .1211 .015 O15 .8435 -.8435 .0529 .015 O16 .7498 .7755 .2943 .021 O17 .9607 .7037 .2107 .018 O18 .8203 -.8203 .2780 .013 O19 .7299 -.7299 .1706 .8867 .021 O20 0 0 .0247 .9300 .021 F1a 0 0 -.2626 .1373 .06 Cl1a 0 0 -.2626 .0245 .06 OH1a 0 0 -.2626 .0200 .06 F1b .0476 .0953 -.2592 .1373 .06 Cl1b .0476 .0953 -.2592 .0245 .06 OH1b .0476 .0953 -.2592 .0200 .06 F2a 0 0 .2397 .1373 .06 Cl2a 0 0 .2397 .0245 .06 OH2a 0 0 .2397 .0200 .06 F2b 0 0 .2097 .1373 .06 Cl2b 0 0 .2097 .0245 .06 OH2b 0 0 .2097 .0200 .06 F2c .0214 .0428 .2938 .1373 .06 Cl2c .0214 .0428 .2938 .0245 .06 OH2c .0214 .0428 .2938 .0200 .06 F2d 0 0 .2635 .1373 .06 Cl2d 0 0 .2635 .0245 .06 OH2d 0 0 .2635 .0200 .06 F2e 0 0 .1736 .1373 .06 Cl2e 0 0 .1736 .0245 .06 OH2e 0 0 .1736 .0200 .06