Vladimirite Yang H, Evans S H, Downs R T, Jenkins R A The Canadian Mineralogist 49 (2011) 1055-1064 The crystal structure of vladimirite, with a revised chemical formula, Ca4(AsO4)2(AsO3OH)*4H2O Note: Sample R100075 Locality: Ait Ahmane vein No. 53, Bou Azzer district, Morroco _database_code_amcsd 0018560 5.8279 10.1802 22.8944 90 96.943 90 P2_1/c atom x y z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ca1 .67087 .72601 .00250 .00903 .00882 .00966 .00864 .00006 .00125 -.00106 Ca2 .00525 .85202 .14094 .00875 .00836 .00887 .00906 .00049 .00118 .00124 Ca3 .88901 .32115 .10694 .01124 .01197 .01279 .00938 .00266 .00304 .00243 Ca4 .43361 .36411 .24537 .01010 .00955 .00960 .01072 .00046 -.00053 -.00027 As1 .86851 .54829 .21401 .00704 .00763 .00608 .00729 .00056 .00047 .00042 As2 .54070 .00128 .09702 .00733 .00710 .00670 .00827 .00058 .00131 .00061 As3 .23074 .58486 .04956 .00718 .00697 .00703 .00756 .00015 .00098 .00005 O1 .85631 .71384 .21273 .00963 .01140 .00654 .01124 .00033 .00247 .00046 O2 .13205 .49715 .20166 .01402 .01181 .01405 .01715 .00569 .00558 .00367 O3 .67374 .48109 .16106 .01463 .01797 .00999 .01391 .00017 -.00629 -.00084 O4 .79173 .49184 .27804 .01209 .01493 .01168 .01037 -.00084 .00439 .00206 O5 .54435 .16434 .08188 .01032 .01235 .00710 .01132 .00060 .00063 .00165 O6 .26501 .95021 .08624 .01336 .00791 .01457 .01750 -.00265 .00110 .00411 O7 .66427 .97778 .16747 .01169 .01365 .01214 .00898 .00176 .00012 .00309 O8 .71472 .91483 .05839 .01199 .01243 .01104 .01297 .00236 .00340 -.00388 O9 .69994 .38580 .01805 .01284 .01128 .02017 .00711 .00027 .00132 .00239 O10 .01321 .67453 .06959 .01142 .00852 .01221 .01314 .00288 -.00028 -.00260 O11 .19637 .42536 .06268 .01108 .01422 .00575 .01404 -.00124 .00486 -.00080 O12H .48847 .63978 .08884 .01012 .00829 .01136 .00999 -.00007 -.00179 .00156 OW1 .02305 .15367 .04187 .01396 .01170 .01021 .01975 .00151 .00102 .00149 OW2 .25261 .22762 .16275 .01270 .01489 .01237 .01157 .00121 .00455 .00025 OW3 .76957 .22834 .19865 .01400 .01582 .01297 .01210 -.00143 -.00282 .00021 OW4 .65792 .22953 .31522 .01189 .01217 .01176 .01221 .00085 .00339 .00146 H1 -.07100 .13772 .01910 .03 H2 .08161 .08131 .05382 .03 H3 .23135 .15423 .17793 .03 H4 .34081 .21940 .13845 .03 H5 .74002 .14615 .19077 .03 H6 .86932 .23422 .22131 .03 H7 .70746 .15775 .30747 .03 H8 .60468 .21025 .34196 .03 H9 .56736 .57309 .11828 .03