Gunterite Kampf A R, Hughes J M, Marty J, Nash B The Canadian Mineralogist 49 (2011) 1243-1251 Gunterite, Na4(H2O)16(H2V10O28)*6H2O, a new mineral species with a doubly-protonated decavanadate polyanion: crystal structure and descriptive mineralogy Locality: West Sunday mine, San Miguel County, Colorado, USA _database_code_amcsd 0018627 19.848 10.1889 13.1184 90 130.187 90 C2/m atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Na1 .3134 .5 .0401 .066 .059 .047 .098 0 .053 0 Na2 .623 .5 .344 .56 .056 .045 .044 .09 0 .046 0 Ca2 .6693 .5 .413 .44 .052 .045 .044 .083 0 .048 0 V1 0 .3386 .5 .0337 .0303 .0280 .049 0 .0284 0 V2 .93435 .5 .6285 .0368 .0310 .0355 .051 0 .0297 0 V3 .82092 .5 .3223 .0367 .0289 .0355 .051 0 .0280 0 V4 .88655 .34890 .1951 .0392 .0361 .0339 .0504 -.0010 .0291 -.0023 O1 .7338 .5 .3092 .045 .033 .047 .055 0 .029 0 O2 .8454 .5 .6088 .046 .042 .049 .061 0 .040 0 O3 .9494 .2369 .3644 .037 .035 .033 .050 -.003 .030 -.003 O4 .8477 .5 .0940 .039 .041 .027 .049 0 .029 0 O5 .0504 .5 .6337 .033 .031 .029 .049 0 .030 0 O6 .8977 .6222 .4811 .033 .029 .027 .050 .001 .028 -.001 O7 .9995 .6317 .7489 .041 .038 .033 .057 -.001 .033 -.004 O8 .8491 .2304 .0891 .048 .048 .036 .061 -.004 .035 -.009 O9 .7991 .3685 .2102 .037 .033 .036 .049 -.002 .029 -.004 OW1 .4161 .5 .0050 .073 .062 .065 .092 0 .050 0 OW2 .3211 .5 .2369 .099 .107 .102 .100 0 .072 0 OW3 .5651 .6650 .2031 .108 .133 .049 .215 -.006 .146 -.025 OW4 .7011 .6773 .5326 .084 .082 .070 .126 .025 .079 .014 OW5 .5270 .5 .376 .223 .32 .056 .56 0 .41 0 OW6 .6693 .1947 .1683 .089 .091 .085 .109 .009 .074 .015 OW7 .583 0 .026 .183 .37 .093 .140 0 .19 0 OW8 .7600 .5 .684 .134 .166 .104 .19 0 .140 0 H1A .3985 .4392 .0275 2 H2A .3833 .5 .2530 .119 H2B .3724 .5 .3286 .119 H3A .6107 .6836 .2763 .129 H3B .5409 .7302 .2024 .129 H4A .7065 .6472 .6003 .04 H4B .6634 .7269 .5318 .13 H5 .5069 .4289 .3773 .4 H6A .6433 .2706 .1287 .13 H6B .7230 .2130 .1952 .27 H7A .5582 0 -.0597 .01 H7B .5259 0 -.0078 .07 H8A .80 .5 .67 2 H8B .71 .5 .60 2