Feldspar Group. A member of the plagioclase series, optically near An40Ab60 (andesine), but low in silica.
Originally reported from Monte Rosso, Linosa, Pelagie Islands, Agrigento Province, Sicily, Italy.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
