Orientite Moore P B, Shen J, Araki T American Mineralogist 70 (1985) 171-181 Crystal chemistry of the (M2)3+ phi2 sheet: Structural principles and crystal structures of ruizite, macfallite and orientite Locality: Lake Manganese, Copper Harbor, Keweenaw County, Michigan, USA _database_code_amcsd 0000965 9.074 19.130 6.121 90 90 90 Bbmm atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mn1 .25 0 .25 .00300 .00055 .00535 .00001 -.00000 -.00004 Mn2 .4549 .25 .2499 .5 .01386 .00191 .02308 0 .00135 0 Ca .6978 .1585 0 .00871 .00053 .00713 .00017 0 0 Si1 .1057 .25 0 .5 .00934 .00104 .01450 0 0 0 O1 .9833 .1808 0 .00835 .00042 .00835 .00034 0 0 O2 .2049 .25 .2245 .00520 .00063 .01077 0 -.00005 0 Si2 .0301 .097 0 .00373 .00043 .00605 .00006 0 0 O3 .1294 .0812 .2164 .00327 .00076 .00886 .00018 .00066 -.00021 O4 .8729 .0584 0 .00333 .00104 .00681 .00004 0 0 OH5 .3677 .0308 0 .00374 .00078 .00950 -.00006 0 0 OH6 .4325 .1766 0 .5 .01277 .00145 .02100 -.00061 0 0 OH7 .4325 .1766 0 .5 .01277 .00145 .02100 -.00061 0 0