That kinda conflicts with the lore I've created
The crystal of creation makes the multiverse. That's how it's infinite. There are billions of new universes created every second by the crystal and there's no way to turn it off
So. . . Maybe we can say the elemental crystals are the equivalent to infinity stones in whatever universe it's from. Heck, we could say they're more powerful since Infinity stones are kinda common in the multiverse. It's like that one scene from Loki where the workers use them as paperweights, that's how common they are