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