Phengite Smyth J R, Jacobsen S D, Swope R J, Angel R J, Arlt T, Domanik K, Holloway J R European Journal of Mineralogy 12 (2000) 955-963 Crystal structures and compressibilities of synthetic 2M_1 and 3T phengite micas Sample: synthetic 2M_1 _database_code_amcsd 0006844 5.2046 9.0368 19.886 90 95.615 90 C2/c atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) K 0 .0936 .25 .964 .0314 .0303 .0271 .037 0 .0027 0 AlM2 .2463 .08152 .00008 .588 .0144 .0167 .0116 .0146 .0002 .0004 .0005 MgM2 .2463 .08152 .00008 .365 .0144 .0167 .0116 .0146 .0002 .0004 .0005 FeM2 .2463 .08152 .00008 .019 .0144 .0167 .0116 .0146 .0002 .0004 .0005 SiT1 .4619 .92804 .13519 .952 .0135 .0151 .0093 .0160 -.0003 .0009 .0002 AlT1 .4619 .92804 .13519 .048 .0135 .0151 .0093 .0160 -.0003 .0009 .0002 SiT2 .4524 .25805 .13522 .952 .0140 .0145 .0121 .0153 -.0003 .0009 .0002 AlT2 .4524 .25805 .13522 .048 .0140 .0145 .0121 .0153 -.0003 .0009 .0002 O1 .4601 .0931 .16892 .0187 .0235 .0124 .0201 -.0005 .0017 .0009 O2 .2253 .8349 .16261 .0179 .0129 .0198 .0211 -.0038 .0021 -.0004 O3 .2256 .3478 .16924 .0193 .0209 .0200 .0167 .0046 .0007 -.0011 O4 .4530 .9349 .05491 .0182 .0183 .0198 .0166 -.0020 .0019 .0002 O5 .4016 .2513 .05458 .0176 .0184 .0186 .0152 -.0003 -.0015 .0020 Oh6 .4555 .5661 .05460 .6 .0261 .0354 .0205 .0228 .0067 .0043 -.0013 F6 .4555 .5661 .05460 .4 .0261 .0354 .0205 .0228 .0067 .0043 -.0013 H .395 .634 .058 .6 .023