Iodargyrite Hull S, Keen D A Physical Review B59 (1999) 750-761 Pressure-induced phase transitions in AgCl, AgBr, and AgI Sample: P = 0.0 GPa, Phase II _database_code_amcsd 0015225 4.599 4.599 7.524 90 90 120 P6_3mc atom x y z Biso Ag 0 0 0 8.9 I 0 0 .335 5.8