I think I just learned a weakness of the crystals such as the crystal of creation, reality ruby, and power Pearl

Midas (the guy in the foreground) is a earth/metal bender. Midas has the ability to bend metal and since crystals have some properties of metal, Midas could just use his metal bending to break the crystal

The crystals are more energy-like though. The material can't be recognized and they work as a seemingly endless power supply, so I doubt an earthbender could do much. (Also I'd rather not have somebody steal or damage them while I'm still trying to set up a huge lore thing)

Well nearly anyone with armor is f**ked against Midas. He can use his earthbending to make the metal turn into shards and penetrate into the enemy. Like a frag grenade

What about the Collector's armor then? It can instantly change shape to counteract most attacks so what would happen then

Here are some armors Midas can't bend

Any of the lunar armors (it's made of lunar fragments)
Omega alloy armor (but barely)
Auric testla armor (auric bar is made from the essence of a dragon)
Limitless armor (it can just counteract the bending)

What about Egg shell
It's kinda like an armor
but it's not metal or rock

The egg shell needs to be toned down but that's just my opinion

It's not much compared to Omega Alloy
It's about 30% of the hardness/toughness compared to it

Thanks for the explanation

u welcome