Laachite Chukanov N V, Krivovichev S V, Pakhomova A S,Pekov I V,Schafer C, Vigasina M F, Van K V European Journal of Mineralogy 26 (2011) 103-111 Laachite, (Ca,Mn)2Zr2Nb2TiFeO14, a new zirconolite-related mineral from the Eifel volcanic region, Germany Locality: Laach Lake volcano, Eifel region, Germany _database_code_amcsd 0020511 7.3119 14.1790 10.1700 90 90.072 90 C2/c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Nb1 0 .383135 .25 .44 .00738 .00932 .00521 .00759 0 -.00081 0 Ti1 0 .383135 .25 .40 .00738 .00932 .00521 .00759 0 -.00081 0 Al1 0 .383135 .25 .16 .00738 .00932 .00521 .00759 0 -.00081 0 Nb2 -.25 .75 0 .82 .01035 .01232 .00973 .00900 .00234 -.00182 .00080 Ti2 -.25 .75 0 .18 .01035 .01232 .00973 .00900 .00234 -.00182 .00080 Ti3 0 .882243 .25 .72 .01061 .01009 .01288 .00887 0 .00096 0 Nb3 0 .882243 .25 .28 .01061 .01009 .01288 .00887 0 .00096 0 Ca1 -.5 .631560 .25 .28 .00655 .00549 .00928 .00488 0 .00079 0 Mn1 -.5 .631560 .25 .26 .00655 .00549 .00928 .00488 0 .00079 0 Ce1 -.5 .631560 .25 .16 .00655 .00549 .00928 .00488 0 .00079 0 La1 -.5 .631560 .25 .05 .00655 .00549 .00928 .00488 0 .00079 0 Nd1 -.5 .631560 .25 .05 .00655 .00549 .00928 .00488 0 .00079 0 Th1 -.5 .631560 .25 .14 .00655 .00549 .00928 .00488 0 .00079 0 Y1 -.5 .631560 .25 .06 .00655 .00549 .00928 .00488 0 .00079 0 Ca2 0 .632491 .25 .32 .00837 .00822 .00897 .00793 0 -.00015 0 Mn2 0 .632491 .25 .28 .00837 .00822 .00897 .00793 0 -.00015 0 Ce2 0 .632491 .25 .14 .00837 .00822 .00897 .00793 0 -.00015 0 La2 0 .632491 .25 .05 .00837 .00822 .00897 .00793 0 -.00015 0 Nd2 0 .632491 .25 .05 .00837 .00822 .00897 .00793 0 -.00015 0 Th2 0 .632491 .25 .14 .00837 .00822 .00897 .00793 0 -.00015 0 Y2 0 .632491 .25 .02 .00837 .00822 .00897 .00793 0 -.00015 0 Zr1 -.24980 .483043 .013914 .78 .00988 .01276 .00724 .00963 .00042 -.00252 -.00205 Mn3 -.24980 .483043 .013914 .22 .00988 .01276 .00724 .00963 .00042 -.00252 -.00205 Fe1 -.29920 .24390 -.00901 .34 .05016 .07151 .03084 .04804 -.02850 -.02959 .02942 Mn4 -.29920 .24390 -.00901 .10 .05016 .07151 .03084 .04804 -.02850 -.02959 .02942 Y3 -.29920 .24390 -.00901 .06 .05016 .07151 .03084 .04804 -.02850 -.02959 .02942 O1 -.25248 .62075 .08905 .00894 .00992 .00591 .01099 -.0029 .0026 -.00178 O2 -.03977 .98257 .12119 .01297 .01948 .00731 .01210 .00180 -.01300 .00010 O3 .03600 .48118 .11947 .01699 .00330 .01059 .00741 .00126 -.00825 .00333 O4 -.2521 .13947 .10165 .01282 .01320 .01238 .01289 -.0006 -.0001 -.00182 O5 -.05679 .78155 .12714 .01263 .02337 .00358 .01089 -.00462 -.00944 .00101 O6 .05878 .28280 .12530 .01353 .01441 .0171 .00911 .00008 .00200 -.00385 O7 -.24932 .38714 .17805 .01417 .00880 .01885 .01486 .0003 -.0044 .00629