Holmquistite
Camara F, Oberti R
American Mineralogist 90 (2005) 1167-1176
The crystal-chemistry of holmquistites: Ferroholmquistite from
Greenbushes (Western Australia) and
hints for compositional constraints in B-Li amphiboles
Sample: Zaire
_database_code_amcsd 0003816
18.3345 17.6955 5.2764 90 90 90 Pnma
atom      x      y      z   occ Uiso
Mg1   .1252  .1600  .3950  .775 .006
Fe1   .1252  .1600  .3950   .20 .006
Mn1   .1252  .1600  .3950   .02 .006
Zn1   .1252  .1600  .3950  .005 .006
Al2   .1254  .0686 -.1040   .67 .006
Fe3+2 .1254  .0686 -.1040   .30 .006
Fe++2 .1254  .0686 -.1040   .03 .006
Mg3   .1253    .25 -.1051   .80 .006
Fe3   .1253    .25 -.1051   .20 .006
Li4   .1241 -.0069  .3979   .99 .017
Na4   .1241 -.0069  .3979   .01 .017
NaA    .375    .25     .5   .03
Si1A  .2698  .1626  .0676       .006
Si1B -.0192  .1630  .7246       .006
Si2A  .2733  .0767  .5726       .006
Si2B -.0240  .0777  .2177       .006
O1A   .1810  .1582  .0527       .008
O1B   .0695  .1579  .7376       .008
O2A   .1846  .0764  .5881       .008
O2B   .0651  .0757  .2035       .008
OH3A  .1820    .25  .5558  .955 .009
F3A   .1820    .25  .5558  .045 .009
OH3B  .0687    .25  .2345  .955 .009
F3B   .0687    .25  .2345  .045 .009
O4A   .3118 -.0038  .5647       .010
O4B  -.0643 -.0007  .2703       .010
O5A   .3049  .1157 -.1659       .010
O5B  -.0537  .1136  .9512       .009
O6A   .2975  .1294  .3345       .011
O6B  -.0468  .1340  .4513       .010
O7A   .2948    .25  .0455       .011
O7B  -.0438    .25  .7595       .011
HA    .2370    .25  .5680  .955
HB    .0150    .25  .2070  .955