A question for you scientists and science enthusiasts here in Fluther: Can you explain why Mordenite Zeolite is used for cat litter?

So I did look this up on Wiki before asking here ;) But I’m hoping one of you would be so kind as to explain to me the hows/whys as the wiki pages I saw on Mordenite and this page on Zeolite. Neither really gave the reasons for cat litter usage though it did state Zeolite is used to absorb the ammonia in fish tanks, and I can obviously relate that to the litter

I was changing my cats litter boxes with these pellets and noticed the only ingredient was Mordenite Zeolite.

I’m curious as to it’s safety, too. Thank you in advance.