Alum-(K)
Biagioni C, Mauro D, Pasero M, Bonaccorsi E, Lepore G O, Zaccarini F, Skogby H
American Mineralogist 105 (2020) 1088-1098
Crystal-chemistry of sulfates from the Apuan Alps (Tuscany, Italy).
VI. Tl-bearing alum-(K) and voltaite from the Fornovolasco mining complex
Locality: Fornovolasco mine, Apuan Alps, Italy
_database_code_amcsd 0020896
12.2030 12.2030 12.2030 90 90 90 Pa3
atom      x      y       z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
K        .5     .5      .5 .879 .0526  .0526  .0526  .0526  .0109  .0109  .0109
Tl       .5     .5      .5 .121 .0526  .0526  .0526  .0526  .0109  .0109  .0109
Al        0      0       0 .877 .0178  .0178  .0178  .0178 -.0003 -.0003 -.0003
Fe        0      0       0 .123 .0178  .0178  .0178  .0178 -.0003 -.0003 -.0003
S    .30852 .30852  .30852      .0225  .0225  .0225  .0225 .00388 .00388 .00388
OW1  .15320 .01817 -.01744      .0256  .0182  .0325  .0260 -.0042  .0004  .0012
H11    .205   .028    .041       .066
H12    .187   .044   -.083       .068
OW2  .04621 .13636  .30100      .0374  .0406  .0339  .0376  .0026 -.0070 -.0069
H21   -.002   .195    .291       .069
H22    .115   .168    .300       .100
O3    .2403  .2403   .2403 .770 .0658  .0658  .0658  .0658 -.0165 -.0165 -.0165
O4    .2652  .4209   .3115 .770 .0461  .0638  .0326  .0420  .0250  .0283  .0141
O3A   .3761  .3761   .3761 .230 .0658  .0658  .0658  .0658 -.0165 -.0165 -.0165
O4A   .2873  .2041   .3646 .230 .0461  .0638  .0326  .0420  .0250  .0283  .0141