Melliniite Pratesi G, Bindi L, Moggi-Cecchi V American Mineralogist 91 (2006) 451-454 Icosahedral coordination of phosphorus in the crystal structure of melliniite, a new phosphide mineral from the Northwest Africa 1054 acapulcoite _database_code_amcsd 0004124 6.025 6.025 6.025 90 90 90 P2_13 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ni1 .11684 .20686 .45493 .58 .0290 .0295 .0289 .0286 .0001 -.0002 .0001 Fe1 .11684 .20686 .45493 .42 .0290 .0295 .0289 .0286 .0001 -.0002 .0001 Ni2 .6803 .6803 .6803 .58 .0261 .0261 .0261 .0261 .0004 .0004 .0004 Fe2 .6803 .6803 .6803 .42 .0261 .0261 .0261 .0261 .0004 .0004 .0004 P .0622 .0622 .0622 .0242 .0242 .0242 .0242 -.0003 -.0003 -.0003