Carboborite Zhesheng M, Nicheng S, Jinchuan S, Zhizhong P Bulletin de Mineralogie 104 (1981) 578-581 The refinement of the crystal structure of carboborite MgCa2[CO3]2[B(OH)4]2*4H2O _database_code_amcsd 0012074 11.011 6.674 10.692 90 116.64 90 P2_1/n atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mg .5 0 0 .0027 .0062 .0028 0 .002 0 Ca .2985 .9987 .2391 .0026 .0043 .0025 .0002 .0018 .0003 C .2764 .2654 .0235 .0017 .0043 .0013 .0002 .0011 -.0002 B .5080 -.2943 .2464 .0039 .0084 .0044 .0003 .0025 .0008 O1 .2052 .2860 .0904 .0039 .0076 .0033 .0006 .0027 -.0002 O2 .3437 .1008 .0430 .0044 .0079 .0047 .0018 .0038 .0016 O3 .4121 .2975 .3838 .0034 .0094 .0037 -.0006 .0015 .0004 O4 .2777 .4025 -.0589 .0065 .0085 .0051 .0022 .0044 .0021 O5 .5477 -.2232 .1414 .0043 .0087 .0042 .0017 .0034 .0017 O6 .5776 -.4827 .3093 .0035 .0074 .0052 .0011 .0022 .0021 O7 .5278 -.1362 .3497 .0032 .0087 .0036 -.0012 .0021 -.001 O8 .6370 .1934 .1519 .0061 .0105 .0052 .0003 .0012 .0013 O9 .3593 -.3307 .1816 .0027 .0073 .0034 .0004 .0020 .0006 H1 .116 .191 .631 H2 .173 .120 .407 H3 .358 .466 .624 H4 .428 .305 .887 H5 .401 .067 .615 H6 .460 .267 .471 H7 .168 .352 .724 H8 .477 .350 .379