leucophosphite
{{infobox mineral
|name=Leucophosphite
|image=Hureaulite-Leucophosphite-sea73c.jpg
|caption= Hureaulite, leucophosphite.
Locality: White Elephant Mine, Cicero Peak, Pringle, Custer District, Custer County, South Dakota, US (Locality at mindat.org).
Size: small cabinet, 9.8 × 5.4 × 3.4 cm.
|category=Phosphate mineral
|formula=KFe+32(PO4)2(OH)·2H2O{{cite web|url=https://www.mindat.org/min-2385.html| title=Leucophosphite|website=mindat.org|access-date=10 August 2019}}
|color=White to greenish, buff, yellow-brown, orange-brown, pink, greenish brown, brownish purple
|fracture=Monoclinic
}}
Leucophosphite is a phosphatic mineral derived from guano (bird or bat excrement).