Zinc

Many people know that zinc is already in many mods, but it's not quite the thing.

I suggest that zinc, if paired with copper, could be able to create different mechanics in the redstone engineering.

for example, as the lightning rod exist, you may be able to set it to either lightning mode or redstone mode, and if in redstone mode, it would work in a way so that if a redstone signal goes into it, that same signal will be transported to any zinc rod in a range of 5 blocks, creating some sort of wireless redstone.

another example could be that you can create logical gate blocks using copper and zinc, which have two inputs and one output, and work like actual logical gates