Paratacamite-(Mg)
Kampf A R, Sciberras M J, Leverett P, Williams P A, Malcherek T, Schluter J,
Welch M D, Dini M, Donoso A A M
Mineralogical Magazine 77 (2013) 3113-3124
Paratacamite-(Mg), Cu3(Mg,Cu)Cl2(OH)6; a new substituted basic copper
chloride mineral from Camerones, Chile
Locality: Cuya village, Camarones Valley, Arica Province, Chile
_database_code_amcsd 0020447
13.689 13.689 14.025 90 90 120 R-3
atom     x     y     z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Cu1      0     0    .5 .38 .0117  .0121  .0117   .011 .00605      0      0
Mg1      0     0    .5  .6 .0117  .0121  .0117   .011 .00605      0      0
Mn1      0     0    .5  .1 .0117  .0121  .0117   .011 .00605      0      0
Ni1      0     0    .5  .1 .0117  .0121  .0117   .011 .00605      0      0
Cu2     .5    .5    .5 .38 .0120  .0129  .0126  .0096  .0057  .0002  .0004
Mg2     .5    .5    .5  .6 .0120  .0129  .0126  .0096  .0057  .0002  .0004
Mn2     .5    .5    .5  .1 .0120  .0129  .0126  .0096  .0057  .0002  .0004
Ni2     .5    .5    .5  .1 .0120  .0129  .0126  .0096  .0057  .0002  .0004
Cu3  .4162 .3322 .3329     .0114  .0108  .0098  .0134  .0050 -.0011 -.0022
Cu4  .4151 .5818 .3333     .0117  .0107  .0105  .0139  .0054 -.0011  .0012
Cl1      0     0 .1941     .0160  .0166  .0160   .015  .0083      0      0
Cl2  .5006 .5004 .1943     .0147  .0159  .0161  .0122  .0080  .0001  .0004
O1   .5613 .6246 .3962      .014   .009   .010   .019   .003  -.001  -.004
O2   .5625 .4353 .3958      .014   .012   .012   .017   .006  -.002   .002
O3   .3699 .4341 .3940      .016   .012   .011   .021   .005   .004   .001
O4   .0646 .1270 .3953      .014   .011   .013   .017   .006  -.001  -.006
H1   .5988 .6911 .4306      .020
H2   .5942 .4000 .4296      .020
H3   .2927 .3970 .3964      .023
H4   .0939 .1897 .4340      .021