Alunogen Menchetti S, Sabelli C Tschermaks Mineralogische und Petrographische Mitteilungen 21 (1974) 164-178 Alunogen. Its structure and twinning Locality: grotta dell'allume, Vulcano Island, Italy _database_code_amcsd 0015647 7.425 26.9750 6.0608 90.03 97.66 91.94 P-1 atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Al1 .2365 .09959 .0033 .0042 .0003 .0053 .0001 .0012 .0006 Al2 .2195 .40121 .9987 .0049 .0004 .0064 .00001 .0014 .0007 S1 .7422 .06071 .4866 .0047 .0004 .0066 .0001 .0007 .0005 S2 .7318 .43938 .4809 .0051 .0005 .0098 .0001 .0013 .0005 S3 .1303 .24739 .4731 .0223 .0004 .0134 .0007 .0074 .0008 O1 .6726 .0337 .2781 .0089 .0012 .0132 .0015 -.0030 -.0006 O2 .8059 .0257 .6623 .0133 .0006 .0161 -.0006 -.0054 .0020 O3 .5925 .0886 .5552 .0083 .0009 .0064 .0006 .0023 -.0003 O4 .8928 .0952 .4512 .0030 .0010 .0167 -.0007 .0014 .0010 O5 .6752 .4664 .2740 .0117 .0010 .0122 -.0009 -.0023 .0022 O6 .8029 .4744 .6573 .0121 .0008 .0225 .0007 -.0045 -.0005 O7 .5715 .4113 .5438 .0064 .0012 .0103 -.0004 .0016 .0018 O8 .8728 .4047 .4455 .0075 .0013 .0181 .0016 .0030 -.0012 O9 .2626 .2177 .6116 .0350 .0008 .0428 -.0001 -.0053 .0037 O10 .1042 .2268 .2475 .0231 .0013 .0264 .0010 -.0003 -.0012 O11 -.0438 .2464 .5573 .0326 .0020 .0467 .0018 .0239 .0014 O12 .2023 .2983 .4664 .0488 .0004 .0269 .0006 .0160 .0007 O13 .1400 .0380 .8830 .0075 .0005 .0099 -.0001 -.0021 .0002 O14 .2768 .0690 .2845 .0080 .0005 .0103 .0000 .0005 .0005 O15 .4730 .0819 .9545 .0071 .0008 .0149 .0003 .0026 .0010 O16 .3265 .1606 .1258 .0094 .0006 .0205 -.0003 .0011 -.0005 O17 .1967 .1276 .7168 .0079 .0006 .0105 .0002 .0009 .0006 O18 -.0010 .1149 .0522 .0061 .0008 .0124 .0005 .0035 .0007 O19 .4521 .4225 .9364 .0077 .0012 .0108 .0001 .0028 .0002 O20 .2687 .4304 .2832 .0090 .0007 .0116 .0003 .0016 .0009 O21 .1266 .4632 .8868 .0066 .0005 .0130 .0001 .0004 .0006 O22 -.0183 .3829 .0549 .0080 .0007 .0125 .0005 .0013 -.0001 O23 .1665 .3753 .7124 .0094 .0008 .0104 .0005 .0013 -.0001 O24 .3100 .3419 .1112 .0114 .0006 .0197 .0007 .0041 .0016 O25 .7916 .1748 .8023 .0188 .0012 .0392 .0100 .0001 .0019 O26 .8842 .2906 .9493 .0304 .0014 .0676 -.0008 .0099 -.0020 O27 .6497 .1967 .2262 .0192 .0031 .0898 -.0019 -.0047 -.0011 O28 .4949 .2834 .9045 .0213 .0028 .0563 .0022 .0044 -.0053 Wat29 .644 .296 .444 .4 9.68 H1 .180 .007 .850 H2 .010 .033 .800 H3 .250 .029 .290 H4 .370 .083 .350 H5 .520 .090 .840 H6 .550 .064 .080 H7 .260 .187 .160 H8 .450 .166 .180 H9 .230 .165 .690 H10 .080 .116 .620 H11 -.040 .108 .200 H12 -.080 .138 .960 H13 .500 .413 .790 H14 .520 .444 .050 H15 .280 .469 .290 H16 .340 .429 .400 H17 .180 .495 .840 H18 .020 .477 .860 H19 -.060 .391 .200 H20 -.060 .347 .010 H21 .050 .381 .650 H22 .180 .345 .660 H23 .270 .326 .250 H24 .400 .325 .020 H25 .680 .159 .680 H26 .850 .203 .760 H27 .910 .275 .810 H28 .960 .268 .060 H29 .720 .220 .310 H30 .710 .190 .110 H31 .440 .259 .820 H32 .630 .287 .920