Bityite Lin J C, Guggenheim S American Mineralogist 68 (1983) 130-142 The crystal structure of a Li,Be-rich brittle mica: a dioctahedral-trioctahedral intermediate Locality: Mops pegmatite, Salisbury district, Zimbabwe _database_code_amcsd 0000888 5.058 8.763 19.111 90 95.39 90 Cc atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ca1 0 .09104 .25 0.0136 0.0049 0.00040 -.0004 0.0003 -.00010 Li1 .259 .248 .503 .50 1.1 Al2 .7458 .9152 .9999 0.0038 0.0012 0.00025 0.0006 0.0000 0.00000 Al3 .2535 .0847 0 0.0035 0.0017 0.00030 -.0006 0.0003 0.00005 Al1 .4653 .9238 .1421 .71 0.0052 0.0039 0.00036 -.0016 0.0001 0.00040 Si1 .4653 .9238 .1421 .05 0.0052 0.0039 0.00036 -.0016 0.0001 0.00040 Be1 .4653 .9238 .1421 .24 0.0052 0.0039 0.00036 -.0016 0.0001 0.00040 Al11 .5346 .0768 .8552 .15 0.0042 0.0004 0.00011 0.0008 0.0001 -.00011 Si11 .5346 .0768 .8552 .81 0.0042 0.0004 0.00011 0.0008 0.0001 -.00011 Be11 .5346 .0768 .8552 .04 0.0042 0.0004 0.00011 0.0008 0.0001 -.00011 Al2 .4575 .2535 .1443 .12 0.0039 0.0031 0.00015 -.0007 -.0002 0.00011 Si2 .4575 .2535 .1443 .88 0.0039 0.0031 0.00015 -.0007 -.0002 0.00011 Al22 .5436 .7450 .8572 .70 0.0055 0.0003 0.00032 0.0009 0.0001 0.00004 Be22 .5436 .7450 .8572 .30 0.0055 0.0003 0.00032 0.0009 0.0001 0.00004 O1 .958 .4397 .0517 0.005 0.0020 0.00012 0.0013 0.0002 0.00010 O11 .046 .5648 .9402 0.004 0.0028 0.00010 0.0005 0.0002 0.00030 O2 .400 .2520 .0582 0.007 0.0016 0.00027 0.0006 -.0003 -.00010 O22 .610 .7492 .9467 0.006 0.0011 0.00030 -.0006 0.0002 0.00020 O3 .362 .0927 .1750 0.009 0.0033 0.00042 0.0014 0.0001 0.00040 O33 .642 .9172 .8231 0.007 0.0013 0.00046 -.0015 0.0013 -.00010 O4 .275 .7753 .1671 0.007 0.0038 0.00038 -.0006 -.0004 0.00010 O44 .714 .2208 .8313 0.006 0.0016 0.00054 0.0001 0.0001 0.00050 O5 .291 .3902 .1760 0.005 0.0029 0.00036 0.0014 -.0002 0.00000 O55 .730 .6034 .8225 0.005 0.0022 0.00044 0.0007 -.0004 -.00040 OH6 .449 .5704 .0495 0.002 0.0033 0.00031 0.0002 -.0002 -.00040 OH66 .550 .4345 .9490 0.008 0.0013 0.00041 -.0017 0.0011 0.00000