An Underground Copper Biome with Lightning

I think that with the lightning rod and copper being added to Minecraft, there should be more to do with both of them. I think a cool idea would be an underground biome where there is copper everywhere and cyan lightning would come down from the ceiling of the cave and hit copper on the bottom. In the cave, you would find almost exclusively copper.

The cyan lightning would also be useful because if your above these caves and there is a thunderstorm, if the lightning is bluer than usual, you know your above the cave.

I think that this would be an amazing addition to Minecraft, and thank you for listening.