Quenselite Bystrom A Arkiv for Kemi, Mineralogi och Geologi 19 (1944) 1-9 The structure of quenselite, PbMnO2OH Locality: Langban, Sweden _database_code_amcsd 0020691 9.118 5.676 5.604 90 87.0 90 P2/c atom x y z Pb .3417 -.25 .5139 Mn1 0 -.125 .25 Mn2 0 .375 .25 O1 .1097 -.125 .5722 O2 .1097 .375 .5722 OH3 .5 -.125 .25 OH4 .5 .375 .25