Copper Rails and Copper Minecarts

Kinda like how there are tools and armor as well as a wide variety of blocks there are two things that would be interesting to add, while also being an alternative if iron is limited. Being that copper ore is widely abundant what if it can be used for transportation, Copper rails can be a good alternative for regular rails and they could look very stylish with builds giving a somewhat steampunk look to some builds or a rusted look. They can also be waxed and cleaned.