Cuproscheelite Redfern S A T, Bell A M T, Henderson M B, Schofield P F European Journal of Mineralogy 7 (1995) 1019-1028 Rietveld study of the structural phase transition in the sanmartinite (ZnWO4)- cuproscheelite (CuWO4) solid solution Sample: Cu.7Zn.3WO4 _database_code_amcsd 0006598 4.699 5.817 4.887 91.33 92.08 83.90 P-1 atom x y z occ Biso CuM .5002 .6694 .2444 .7 1.22 ZnM .5002 .6694 .2444 .3 1.22 W .0157 .1758 .2539 .43 O1 .250 .349 .418 .2 O2 .211 .878 .436 .2 O3 .737 .378 .094 .2 O4 .783 .908 .050 .2