Liskeardite Grey I E, Mumme W G, Macrae C M, Caradoc-Davies T, Price J R, Rumsey M S, Mills S J Mineralogical Magazine 77 (2013) 3125-3135 Chiral edge-shared octahedral chains in liskeardite, [(Al,Fe)32(AsO4)18(OH)42(H2O)22] *52H2O, an open framework mineral with a pharmacoalumite-related structure Note: T = 100 K Locality: Marke Valley mine, Liskeard District, Cornwall, UK _database_code_amcsd 0020528 24.576 7.754 24.641 90 90.19 90 I2 atom x y z occ Uiso As1 .79768 .18161 .75058 .0263 As2 0 .50188 .5 .0217 As3 .86884 .98957 .58781 .0249 As4 .74933 .82240 .29770 .0261 As5 .91225 .01416 .36875 .0250 Al1 .93923 .8635 .48702 .679 .0217 Fe1 .93923 .8635 .48702 .321 .0217 Al2 .98726 .1407 .5609 .612 .0245 Fe2 .98726 .1407 .5609 .388 .0245 Al3 .8107 .1938 .3151 .0247 Al4 .6838 .3181 .6895 .0287 Al5 .6849 .3095 .8108 .0252 Al6 .6896 .1848 .3161 .0282 Al7 .8713 .9300 .2497 .0282 Al8 .7494 .0738 .6289 .0283 O1 .8435 .3385 .7496 .75 .037 OH1 .8435 .3385 .7496 .25 .037 O2 .8056 .0570 .8048 .037 O3 .7344 .2697 .7524 .027 O4 .7993 .0576 .6933 .027 O5 .9888 .3826 .5551 .029 O6 .4443 .1214 .9889 .027 O7 .8765 .8734 .5306 .027 O8 .8106 .1041 .5836 .034 O9 .6291 .3530 .8593 .029 O10 .9195 .1353 .5964 .028 O11 .6952 .9449 .3060 .033 O12 .7495 .1654 .1568 .75 .039 OH12 .7495 .1654 .1568 .25 .039 O13 .7526 .2322 .2648 .027 O14 .8071 .9459 .2998 .0249 O15 .9162 .8997 .3109 .033 O16 .9695 .1293 .3766 .028 O17 .8588 .1500 .3705 .031 O18 .9037 .8692 .4202 .028 OH19 .9502 .1155 .4891 .0239 OH20 .9889 .8877 .5500 .0218 OH21 .7504 .1977 .3609 .028 OH22 .8630 .1663 .2603 .029 Wat23 .8260 .4357 .3212 .032 OH24 .6389 .3064 .7504 .029 OH25 .6846 .0851 .6707 .032 OH26 .7398 .3130 .6378 .033 Wat27 .3751 .3638 .3600 .045 OH28 .7397 .3372 .8621 .028 Wat29 .6782 .0680 .8258 .029 Wat30 .6392 .1419 .3739 .047 OH31 .8285 .9184 .1851 .032 OH32 .6378 .1906 .2592 .030 Wat33 .9360 .9495 .2070 .039 Wat34 .7066 .0567 .5652 .040 Wat1 .7537 .575 .5494 .127 Wat2 .0590 .262 .3009 .79 .051 Wat3 .6897 .437 .4620 .222 Wat4 .8561 .2970 .4726 .059 Wat5 .0257 .7097 .3540 .058 Wat6 .6256 .976 .9140 .063 Wat7 .7539 .061 .4649 .87 .113 Wat8 .9148 .5260 .3746 .057 Wat9 .9876 .4232 .3414 .0385 Wat10 .6602 .0783 .9864 .042 Wat11 .6984 .244 .0598 .71 .043 Wat12 .9490 .431 .2495 .78 .088 Wat13 .0333 .941 .2586 .119 Wat14 .6584 .801 .4074 .25 .057 Wat15 .4078 .743 .3461 .66 .17