The gatelite group includes:
ferriperbøeite-(Ce):
(CaCe3)(Fe3+Al2Fe2+)(Si2O7)(SiO4)3O(OH)2
ferriperbøeite-(La):
(CaLa3)(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2
perbøeite-(Ce):
(CaCe3)(Al3Fe2+)(Si2O7)(SiO4)3O(OH)2
perbøeite-(La):
(CaLa3)(Al3Fe2+)(Si2O7)(SiO4)3O(OH)2
The gatelite group is a member of the gatelite supergroup
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