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
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