Faujasite is a mineral group in the zeolite family of silicate minerals. The group consists of faujasite-Na, faujasite-Mg and faujasite-Ca. They all share the same basic formula: (Na₂,Ca,Mg)_3.5(Al₇Si₁₇O₄₈)·32(H₂O) by varying the amounts of sodium, magnesium and calcium. It occurs as a rare mineral in several locations worldwide and is also synthesized industrially.