Grenmarite Bellezza M, Franzini M, Larsen A O , Merlino S, Perchiazzi N European Journal of Mineralogy 16 (2004) 971-978 Grenmarite, a new member of the gotzenite-seidozerite-rosenbuschite group from the Langesundsfjord district, Norway: definition and crystal structure Locality: Langesundsfjord district, Norway _database_code_amcsd 0007085 5.608 7.139 18.575 90 102.60 90 P2/c atom x y z occ Uiso Zr1 .2004 .1197 .0733 .88 .012 Mn1 .2004 .1197 .0733 .12 .012 Zr2 0 .1143 .25 .54 .012 Ti2 0 .1143 .25 .46 .012 Mn3 .5 .3533 .25 .76 .016 Na3 .5 .3533 .25 .24 .016 Na4 .2051 .6151 .0695 .85 .023 Mn4 .2051 .6151 .0695 .15 .023 Na5 0 .6152 .25 .86 .023 Ca5 0 .6152 .25 .14 .023 Na6 .5 .8589 .25 .76 .028 Ca6 .5 .8589 .25 .24 .028 Si1 .7237 .3884 .1034 .012 Si2 .7203 .8413 .1041 .012 O1 .7355 .6144 .1071 .029 O2 .4473 .3259 .0661 .022 O3 .4398 .9015 .0755 .020 O4 .9256 .3239 .0587 .020 O5 .9035 .9074 .0515 .019 O6 .7911 .3185 .1891 .019 O7 .8161 .9100 .1881 .019 O8 .2439 .1266 .1851 .019 F .3025 .5879 .1919 .034