Birnessite Lopano C L, Heaney P J, Post J E American Mineralogist 94 (2009) 816-826 Cs-exchange in birnessite: Reaction mechanisms inferred from time-resolved X-ray diffraction and transmission electron microscopy Note: Solution concentration 0.001 M Note: Occupancies of the Oint sites are undetermined, O is used only as a scatterer _database_code_amcsd 0004947 5.1342 2.8469 7.4815 90.310 101.559 89.944 C-1 atom x y z occ Uiso Mn 0 0 0 .0303 O1 .3811 .00877 .1342 .0336 Oint .2828 -.0835 .4996 .506 .0434 Oint2 .4018 .3698 .5079 .521 .0107