Phlogopite Brigatti M F, Medici L, Poppi L, Vaccaro C The Canadian Mineralogist 39 (2001) 1333-1345 Crystal chemistry of trioctahedral micas - 1M from the Alto Paranaiba Igneous Province, Southeastern Brazil Sample: Taa11-1A, ferroan T-O3 given as 1.663, but I compute 1.647 Locality: Alto Paranaiba Igneous Province, Southeastern Brazil _database_code_amcsd 0005746 5.329 9.244 10.271 90 99.97 90 C2/m atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) O1 .0134 0 .1699 1.40 .0150 .0020 .0045 0 .0009 0 O2 .3290 .2284 .1706 1.47 .0125 .0051 .0033 -.0016 .0020 -.0005 O3 .1302 .1667 .3904 .51 .0014 .0023 .0014 .0003 .0002 .0000 OH4 .1309 .5 .3962 .92 .56 .0035 .0019 .0015 0 .0001 0 F4 .1309 .5 .3962 .02 .56 .0035 .0019 .0015 0 .0001 0 O4 .1309 .5 .3962 .06 .56 .0035 .0019 .0015 0 .0001 0 SiT .0757 .16666 .22758 .71 .53 .0023 .0016 .0020 .0001 .0006 .0000 AlT .0757 .16666 .22758 .28 .53 .0023 .0016 .0020 .0001 .0006 .0000 FeT .0757 .16666 .22758 .01 .53 .0023 .0016 .0020 .0001 .0006 .0000 MgM1 0 0 .5 .75 .51 .0019 .0015 .0020 0 .0003 0 FeM1 0 0 .5 .22 .51 .0019 .0015 .0020 0 .0003 0 TiM1 0 0 .5 .03 .51 .0019 .0015 .0020 0 .0003 0 MgM2 0 .3327 .5 .75 .53 .0022 .0015 .0020 0 .0001 0 FeM2 0 .3327 .5 .22 .53 .0022 .0015 .0020 0 .0001 0 TiM2 0 .3327 .5 .03 .53 .0022 .0015 .0020 0 .0001 0 NaA 0 .5 0 .02 2.54 .0242 .0084 .0050 0 .0016 0 KA 0 .5 0 .98 2.54 .0242 .0084 .0050 0 .0016 0