Miersite Hull S, Keen D A Physical Review B59 (1999) 750-761 Pressure-induced phase transitions in AgCl, AgBr, and AgI Sample: P = 8.9 GPa, Phase III _database_code_amcsd 0015229 5.7894 5.7894 5.7894 90 90 90 Fm3m atom x y z Biso Ag .5 .5 .5 6.7 I 0 0 0 4.4