Slavikite Susse P Neues Jahrbuch fur Mineralogie, Monatshefte 1975 (1975) 27-40 Struktur und kristallchemie des slavikits, NaMg2Fe5(SO4)7(OH)6(H2O)33 Locality: La Alcaparrosa, San Juan, Argentina _database_code_amcsd 0014752 12.20 12.20 35.13 90 90 120 R-3 atom x y z occ Biso Na 0 0 .463 .5 22 Mg 0 0 .3431 1.6 Fe1 0 0 .1951 1.8 Fe2 .5 0 .5 1.98 S1 0 0 0 2.63 S2 .4476 .3872 .1040 2.51 O1 .362 .340 .0710 4.1 O2 .508 .526 .1081 3.5 O3 .547 .349 .1001 2.9 O4 .373 .328 .1400 2.4 O5 .938 .903 .031 1/3 6 O6 .865 .947 .014 1/3 11 OH7 .706 .484 .1690 2.8 Wat8 .462 .647 .0436 4.4 Wat9 .700 .483 .0262 4.0 Wat10 .756 .680 .1162 3.1 Wat11 .106 .195 .0922 3.5 Wat12 .682 .690 .0064 3.8 Wat13 .549 .768 .1461 .5 6.8