Grigorievite
Pekov I V, Zubkova N V, Yapaskurt V O, Kartashov P M, Polekhovsky Y S,
Murashko M N, Pushcharovsky D Y
European Journal of Mineralogy 26 (2014) 667-677
Koksharovite, CaMg2Fe3+4(VO4)6, and grigorievite, Cu3Fe3+2Al2(VO4)6,
two new howardevansite-group minerals from volcanic exhalations
Locality: Great Tolbachik Fissure Eruption, Kamchatka, Russia
_database_code_amcsd 0020493
8.0217 9.6858 6.5475 103.645 102.369 106.281 P-1
atom x y z occ Uiso
Cu1 .79085 .79860 .77639 .68 .0182
Mg1 .79085 .79860 .77639 .32 .0182
Cu2 0 .5 .5 .63 .0309
Ca1 0 .5 .5 .20 .0309
Fe1 .54933 .39565 .12342 .47 .0091
Al1 .54933 .39565 .12342 .43 .0091
Ti1 .54933 .39565 .12342 .1 .0091
Al2 .30022 .98867 .4595 .67 .0088
Fe2 .30022 .98867 .4595 .33 .0088
V1 .40396 .66669 .38827 .99 .0112
P1 .40396 .66669 .38827 .01 .0112
V2 .84538 .73827 .28091 .99 .0104
P2 .84538 .73827 .28091 .01 .0104
V3 .76808 .12465 .09204 .99 .0109
P3 .76808 .12465 .09204 .01 .0109
O1 .4422 .8589 .4213 .0121
O2 .4752 .3484 .3720 .0168
O3 .8076 .5554 .2923 .0205
O4 .2218 .1610 .5065 .0163
O5 .2675 .0102 .1641 .0172
O6 .4645 .5752 .1647 .0154
O7 .7352 .7389 .0250 .0173
O8 .0648 .8258 .3316 .0185
O9 .1895 .5813 .3599 .0254
O10 -.0085 .2379 .2063 .0305
O11 .7079 .0296 .2633 .0175
O12 .6499 .2404 .0710 .0227
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