Pokrovskite Perchiazzi N, Merlino S European Journal of Mineralogy 18 (2006) 787-792 The malachite-rosasite group: crystal structures of glaukosphaerite and pokrovskite _database_code_amcsd 0007185 12.2396 9.3506 3.1578 90 96.445 90 P2_1/a atom x y z occ Biso MgMe1 .2122 .0045 .983 .88 1.0 MgMe2 .3989 .7710 .574 .88 1.0 C .1503 -.2637 .5365 5.9 O1 .1499 -.1279 .4448 3.0 O2 .2400 -.3377 .5307 3.0 O3 .0612 -.3249 .6339 3.0 OH4 .3656 .9162 .062 3.0 OH5 .4294 .6266 .103 3.0