Hydroxylherderite Lager G A, Gibbs G V American Mineralogist 59 (1974) 919-925 A refinement of the crystal structure of herderite, CaBePO4OH _database_code_amcsd 0000413 9.789 7.661 4.804 90 90.02 90 P2_1/a atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ca .3309 .1116 .9974 0.0010 0.0019 0.0054 -.0000 .0004 -.0007 P .0815 .2710 .4708 0.0005 0.0009 0.0035 -.0000 .0002 .0003 Be .3398 .4141 .5370 0.0016 0.0013 0.0051 -.0000 -.0003 .0006 O1 .0396 .3988 .2466 0.0013 0.0026 0.0070 .0000 -.0003 .0013 O2 .4585 .2835 .6521 0.0007 0.0025 0.0067 .0003 .0011 .0010 O3 .1935 .3445 .6669 0.0008 0.0033 0.0054 -.0008 -.0002 -.0005 O4 .1428 .1059 .3305 0.0017 0.0016 0.0077 .0004 .0018 -.0000 OH .3332 .4123 .2039 0.0012 0.0031 0.0041 .0003 -.0003 .0002