Y-mtundu wa matole a y ali ndi mawonekedwe odzaza ndi hexalatil yofanana ndi diamondi. Ngati khola la beta limagwiritsidwa ntchito ngati chipinda cholumikizira kuti mulowe m'malo mwa ma camond a tamondi, ndipo ma caagonal a Beta apezeka pakati ndi a Beta imodzi yomwe ili pa vertex ya tetrahedron, a Makina owerengera actadel Zeltal amapangidwa. Popitiliza kulumikizana ndi kapangidwe kameneka, mtundu wa y-mtundu wa shale umapezeka. Mu kapangidwe kake, khola lalikulu limapangidwa ndi khola la β ndi helogal khola la Zelianar, ndipo mabowo awo ophatikizika ndi mizere yazitsulo khumi ndi ziwiri. X type molecular sieve and Y type molecular sieve structure is exactly the same, but Y type molecular sieve silica aluminum ratio is high, hydrothermal stability is strong, so it is more widely used.
