Wurtzite-15R Frondel C, Palache C Science 107 (1948) 602-602 Three new polymorphs of zinc sulfide _database_code_amcsd 0015414 3.83 3.83 46.87999 90 90 120 R3m atom x y z Zn1 0 0 0 Zn2 2/3 1/3 .06667 Zn3 1/3 2/3 .13333 Zn4 2/3 1/3 .2 Zn5 1/3 2/3 .26667 S1 0 0 .05 S2 2/3 1/3 .11667 S3 1/3 2/3 .18333 S4 2/3 1/3 .25 S5 1/3 2/3 .31667