Nickenichite Auernhammer M, Effenberger H, Hentschel G, Reinecke T, Tillmanns E Mineralogy and Petrology 48 (1993) 153-166 Nickenichite, a new arsenate from the Eifel, Germany Locality: Nickenich, Nickenicher Sattel, Eifel, Germany _database_code_amcsd 0014632 11.882 12.760 6.647 90 112.81 90 C2/c atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Na 0 .9922 .25 .76 2.34 .018 .034 .030 0 .001 0 Ca 0 .5 0 .41 2.77 .041 .010 .033 -.003 -.010 .001 Cu 0 .5026 .25 .39 1.33 .014 .005 .030 0 .007 0 MgMe1 0 .2616 .25 .89 1.74 .028 .016 .022 0 .009 0 FeMe1 0 .2616 .25 .11 1.74 .028 .016 .022 0 .009 0 MgMe2 .2143 .1558 .1244 .78 1.01 .0162 .0091 .0147 .0005 .0078 .0013 FeMe2 .2143 .1558 .1244 .22 1.01 .0162 .0091 .0147 .0005 .0078 .0013 As1 0 .71180 .25 .99 .0166 .0073 .0128 0 .0045 0 As2 .26733 .38706 .3757 1.00 .0164 .0081 .0139 -.0003 .0063 -.0003 O11 .8915 .6232 .2381 1.56 .019 .013 .027 -.005 .008 .003 O12 -.0386 .7840 .0200 1.21 .011 .024 .011 -.003 .004 .006 O21 .1169 .3933 .3150 1.28 .015 .012 .025 .000 .011 -.005 O22 .2838 .3141 .1785 1.05 .019 .010 .012 -.001 .007 -.004 O23 .3325 .5042 .3887 1.42 .018 .014 .022 -.004 .009 .000 O24 .3397 .3294 .6189 1.15 .020 .012 .011 .001 .005 .003