Mapiquiroite
Biagioni C, Orlandi P, Pasero M, Nestola F, Bindi L
European Journal of Mineralogy 26 (2014) 427-437
Mapiquiroite, (Sr,Pb)(U,Y)Fe2(Ti,Fe3+)18O38, a new member
of the crichtonite group from the Apuan Alps, Tuscany, Italy
Locality: Buca della Vena mine, Apuan Alps, Tuscany, Italy
_database_code_amcsd 0020186
10.3719 10.3719 20.8752 90 90 120 R-3
atom        x      y      z  occ  Uiso
SrM0        0      0      0 .533 .0218
LaM0        0      0      0 .176 .0218
PbM0        0      0      0 .105 .0218
NaM0        0      0      0 .030 .0218
CaM0        0      0      0 .026 .0218
UM1         0      0     .5 .407 .0071
CeM1        0      0     .5 .101 .0071
YM1         0      0     .5 .205 .0071
MnM1        0      0     .5 .072 .0071
Fe3+M2      0      0 .30924      .0070
TiM3   .18354 .03965 .16506  .69 .0075
Fe3+M3 .18354 .03965 .16506  .19 .0075
Cr3+M3 .18354 .03965 .16506  .09 .0075
V5+M3  .18354 .03965 .16506  .01 .0075
AlM3   .18354 .03965 .16506 .002 .0075
SnM3   .18354 .03965 .16506 .001 .0075
NbM3   .18354 .03965 .16506 .001 .0075
TiM4   .08388 .33058 .60827  .69 .0101
Fe3+M4 .08388 .33058 .60827  .19 .0101
Cr3+M4 .08388 .33058 .60827  .09 .0101
V5+M4  .08388 .33058 .60827  .01 .0101
AlM4   .08388 .33058 .60827 .002 .0101
SnM4   .08388 .33058 .60827 .001 .0101
NbM4   .08388 .33058 .60827 .001 .0101
TiM5   .07587 .31937 .39877  .69 .0089
Fe3+M5 .07587 .31937 .39877  .19 .0089
Cr3+M5 .07587 .31937 .39877  .09 .0089
V5+M5  .07587 .31937 .39877  .01 .0089
AlM5   .07587 .31937 .39877 .002 .0089
SnM5   .07587 .31937 .39877 .001 .0089
NbM5   .07587 .31937 .39877 .001 .0089
O1      .1330  .1904 .56244      .0112
O2      .7106  .2060 .44345      .0102
O3      .3596  .1013 .55931      .0089
O4      .5918  .0321 .55013      .0098
O5      .0519  .8560 .33592      .0094
O6      .3666  .0990 .33985      .0094
O7          0      0  .2155      .0095