Minerals
Sacrofanite
sacrofanite
(Na61K19Ca32)(Si84Al84O336)(SO4)26Cl2F6*2H2O
Sacrofanite Mineral Specimen For Sale — via www.dakotamatrix.com · Source
Overview
Sacrofanite is a rare silicate mineral that has the general formula of (Na,Ca)9(Si,Al)12O24(SO4,CO3,OH,Cl)4·n(H2O). It was approved as a mineral by the International Mineralogical Association in 1980. Its name comes from the Sacrofano Caldera in the Monti Sabatini from which it was discovered in Latium, Italy.