Volborthite Lafontaine M A, LeBail A, Ferey G Journal of Solid State Chemistry 85 (1990) 220-227 Copper-containing minerals - I. Cu3V2O7(OH)2,2H2O: The synthetic homolog of volborthite; crystal structure determination from X-ray and neutron data; structural correlations Note: X-ray data on a synthetic sample _database_code_amcsd 0013678 10.606 5.874 7.213 90 94.90 90 C2/m atom x y z Biso Cu1 0 0 0 .69 Cu2 .25 .25 0 1.81 V .9959 .5 .2516 .55 O1 0 .5 .5 4.27 O2 .3424 .5 .1143 1.55 O3 .0682 .2721 .1846 1.82 O4 .1548 .5 .8464 2.02 Ow .3261 .5 .4788 4.71 H .3501 .5 .2376 5.7 H .3536 .3714 .5639 5.7