Sources/Uses
"Fluoro-edenite occurs in the volcanic products of the Monte Calvario locality of Biancavilla
on the flanks of Mount Etna, Sicily, Italy, and is found in the cavities of benmoreitic lava metasomatized by hot fluids rich in fluorine. . . . Fluoro-edenite is found in materials extracted from the Il Calvario quarry that are used in the local building industry (walls, plaster, mortar, and concrete) and in soil used to pave roads, plazas, and other areas. The quarry has been mined since at least the 1950s, with a peak in production around the 1960s and 1970s, and fibrous amphiboles have also been found outside the quarry around Biancavilla." [IARC Monograph 111]