Leucophosphite crystal cluster, Flambeau Mine, Rusk County, WI. Cluster about 0.6 mm. across. (Photo and specimen by Dan Behnke.)

Formula: KFe2(PO4)2(OH).2H2O  Monoclinic


Leucophosphite is a rare phosphate mineral found with other phosphate minerals in diverse environments.

RUSK COUNTY: Leucophosphite occurs as microscopic pale brown platey crystals and crystal rosettes in oxidized ore at the Flambeau Copper Mine, near Ladysmith (Buchholz, personal communication).