Chlormayenite Ma C, Connolly H C, Beckett J R, Tschauner O, Rossman G R, Kampf A R, Zega T J, Sweeney Smith S A, Schrader D L American Mineralogist 96 (2011) 1199-1206 Brearleyite, Ca12Al14O32Cl2, a new alteration mineral from the NWA 1934 meteorite Locality: Northwest Africa 1934 CV3 carbonaceous chondrite _database_code_amcsd 0018484 11.98 11.98 11.98 90 90 90 I-43d atom x y z occ Ca1 .615 0 .25 .77 Ca2 .555 0 .25 .34 Al1 .013 .013 .013 Al2 .875 0 .25 O1 .792 .095 .30 O2 .170 .170 .170 Cl .375 0 .25 .37