Ardennite-(As) Nagashima M, Armbruster T Mineralogical Magazine 74 (2010) 55-71 Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates Locality: Salm-Chateau, Ardennes, Belgium _database_code_amcsd 0019900 8.7163 5.8131 18.5199 90 90 90 *Pnmm 0 .25 .25 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) MnA1 .94486 .25 .155325 .790 .01014 .01181 .00971 .00890 0 .00230 0 CaA1 .94486 .25 .155325 .210 .01014 .01181 .00971 .00890 0 .00230 0 MnA2 .39566 .75 .159978 .865 .00949 .01232 .00849 .00766 0 -.00129 0 CaA2 .39566 .75 .159978 .135 .00949 .01232 .00849 .00766 0 -.00129 0 AlM1 0 0 0 .00570 .0060 .0051 .0060 .00041 .0003 -.00012 AlM2 .5 0 0 .00698 .0076 .0065 .0068 .00010 .0003 -.00012 AlM3 .67916 -.00151 .25 .511 .00767 .0100 .0061 .0069 -.00061 0 0 MgM3 .67916 -.00151 .25 .42 .00767 .0100 .0061 .0069 -.00061 0 0 CuM3 .67916 -.00151 .25 .035 .00767 .0100 .0061 .0069 -.00061 0 0 VM3 .67916 -.00151 .25 .034 .00767 .0100 .0061 .0069 -.00061 0 0 SiT1 .76474 .75 .09695 .00363 .0032 .0047 .0030 0 .00001 0 SiT2 .27693 .25 .09523 .00626 .0060 .0068 .0059 0 -.00004 0 SiT3 .34294 .25 .25 .00808 .0096 .0078 .0069 0 0 0 AsT4 .04243 .75 .25 .833 .00637 .00671 .00574 .00666 0 0 0 VT4 .04243 .75 .25 .127 .00637 .00671 .00574 .00666 0 0 0 SiT4 .04243 .75 .25 .04 .00637 .00671 .00574 .00666 0 0 0 O1 .12881 .02530 -.08282 .00851 .0088 .0085 .0082 -.0008 .0010 -.0007 O2 .62411 -.01905 -.08292 .00852 .0100 .0079 .0077 .0008 .0017 .0007 O3 .11086 .25 .05260 .0088 .0071 .0100 .0094 0 -.0008 0 O4 .61717 .75 .04181 .0084 .0079 .0084 .0091 0 -.0014 0 O5 .92758 -.0081 .25 .0123 .0128 .0098 .0145 .0021 0 0 O6 .44487 .0110 .25 .0122 .0150 .0110 .0106 .0018 0 0 O7 .68104 .75 .17757 .0115 .0113 .0155 .0077 0 .0025 0 O8 .22317 .25 .18086 .0101 .0115 .0123 .0066 0 .0016 0 O9 .15183 .75 .17639 .0135 .0118 .0189 .0098 0 .0018 0 O10 .11259 .75 .03231 .0079 .0077 .0088 .0071 0 -.0007 0 O11 .61341 .25 .03609 .0080 .0073 .0094 .0075 0 .0000 0 O12 .69784 .25 .18253 .0125 .0109 .0179 .0086 0 .0005 0 H10 .126 .75 .0845 .05 H11 .7188 .25 .018 .05 H12 .657 .25 .1337 .05