Retzian-(Ce)
Moore P B
American Mineralogist 52 (1967) 1603-1613
Crystal chemistry of the basic manganese arsenate minerals 1. The crystal
structures of flinkite, Mn2Mn(OH)4(AsO4) and retzian, Mn2Y(OH)4(AsO4)
Note: Moore did not determine the REE compostion of the sample.
Subsequent work by Dunn & Sturman (1982) concluded that it is Ce dominant
Consequently, the REE in this structure has been changed to Ce
_database_code_amcsd 0000161
5.67 12.03 4.863 90 90 90 *Pban
.25 .25 0
atom     x     y     z Biso
Ce     .25   .25     0  .06
As     .75   .25    .5  .44
Mn     .25 .5548     0  .81
O    .5769 .3198 .3045 1.09
OH   .5783 .5770 .2010 1.08