Chaos Destruction with millions of tiny particles

Hi! I would like to simulate a landslide, snow or sand avalanche in UE5. What they have in common is that they consist of relatively small particles compared to the whole. Chaos Destruction would be suitable for something like that, but there the object can only be broken into larger rocks, not into millions of tiny little particles. Or can it? I know it can be connected to Niagara, but I couldn’t find a way to simulate an avalanche there either. Sandcastle collapse would be a good example as well, like in this video. Can anyone help with this?