Formula: Li(Mn,Fe)PO4 Orthorhombic
Description: Sicklerite is a rare yellowish to dark brown phosphate formed as a result of the alteration of other phosphate minerals in granite pegmatites.
FLORENCE COUNTY: Sicklerite has been tentatively identified as a coating on lithiophyllite in a zoned pegmatite in the NE SE SW sec. 22 T.39N. R.17E. (Koehler, 1989, personal communication).