Any one of a family of hydrous aluminum silicate minerals, whose molecules enclose cations of sodium, potassium, calcium, strontium, or barium, or a corresponding synthetic compound, used chiefly as molecular filters and ion-exchange agents.

• 沸石水合的铝硅酸盐矿物的一种，它的分子包括钠、钾、钙、锶、钡的阳离子或相同的人工化合物，主要用于分子过滤和离子交换的催化剂