Derbylite
Biagioni C, Bonaccorsi E, Perchiazzi N, Halenius U, Zaccarini F
Mineralogical Magazine 84 (2020) 766-777
Derbylite and graeserite from the Monte Arsiccio mine, Apuan Alps, Tuscany, Italy:
occurrence and crystal-chemistry
Locality: Monte Arsiccio mine, Apuan Alps, Italy
_database_code_amcsd 0020902
7.1690 14.3515 4.9867 90 104.820 90 P2_1/m
atom      x       y      z   occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
TiM1 .49648     .25 .74815   .32 .00760  .0082  .0075  .0073    .000  .0024    .000
FeM1 .49648     .25 .74815   .68 .00760  .0082  .0075  .0073    .000  .0024    .000
FeM2 .50351  .13033 .24692       .00774  .0076  .0085  .0073 -.00002 .00212 -.00041
FeM3 .81023  .05935 .86972  .297 .00704  .0071  .0075  .0069  .00140 .00259  .00049
TiM3 .81023  .05935 .86972  .703 .00704  .0071  .0075  .0069  .00140 .00259  .00049
FeM4 .81636 -.06277 .37392  .327 .00719  .0074  .0081  .0065 -.00154 .00249 -.00058
TiM4 .81636 -.06277 .37392  .673 .00719  .0074  .0081  .0065 -.00154 .00249 -.00058
SbA  .07554     .25 .04451 .7539 .01080 .00699 .00761  .0169    .000 .00137    .000
SbB   .9223     .25  .4570 .2461 .01080 .00699 .00761  .0169    .000 .00137    .000
O1    .3468     .25  .0296        .0088  .0072  .0104  .0096    .000  .0037    .000
O2    .6800 -.04488 -.0090        .0069  .0071  .0068  .0068  -.0011  .0018   .0007
O3    .6628  .15142 -.0297        .0089  .0112  .0075  .0082   .0018  .0029  -.0005
O4    .0014  .15077  .7598        .0092  .0089  .0073  .0123  -.0005  .0043  -.0013
O5    .0004  .03653  .2507        .0059  .0056  .0081  .0041  -.0002  .0011   .0004
O6    .6821  .04397  .4884        .0072  .0071  .0080  .0065   .0019  .0016  -.0003
O7    .3342  .15141  .5183        .0088  .0090  .0081  .0091  -.0018  .0022   .0001
OH8   .6437     .25  .4576        .0085  .0064  .0099  .0100    .000  .0034    .000
Ba    .0005     .25  .2475 .0446  .0114