Zeolite
Zeolite (Zeolite (1), monolithic) is a term that refers to minerals in which alkali metals and alkaline earth metals are combined with anions generated by the combination of aluminum oxide and silicate oxide, meaning crystalline aluminum silicate minerals. It is a kind of hydrated aluminum silicate mineral which mainly contains an alkali metal or alkaline earth metal, and it has a structure in which a tetrahedron of (Si, Al) O4 is bonded in a cubic network, W is a mixture of Na, Ca, Ba, Sr, and Z = Si + Al.Feldstones are quartz SiO2, diamonds, zirconium oxide, Although a part of Si in a three-dimensional network structure in which a tetrahedral structure is boundlessly connected is substituted by Al, The right rule breaks and there is a gap in the skeleton. By this gap, the zeolite can absorb a large amount of water at the same time as having the molecular sieve function.