A plug for Mindat! I have had this specimen for many many years, and it was labelled simply wavellite, Bartow, Florida. The only Bartow in Mindat is in Georgia. So I used the Photo Search facility and typed in “wavellite from Florida”, and up popped photos of wavellite from Clear Spring Mine, Homeland, Central Florida Phosphate District (Bone Valley), Polk Co., Florida, USA. Mindat says that Homeland is near Bartow, and the wavellite colour, matrix and habit matches, so there you go! The largest hemisphere is 2mm across.
