how about tin?

How about tin? combine copper bar and tin bar to make bronze? have it the same properties as iron now and make iron a bit more durable and stronger. lets face it copper is pretty useless for the most part but adding tin could make an extra step to early parts of the game. for example to mine iron you will need a bronze pickaxe. bronze armor would look nice especially with some armor trims. a metallic brown color block. the iron levels could start a little deeper tin spawns could be shared between the higher iron ore blocks and copper ore blocks. with this you can make diamond a bit stronger too as with the new netherite upgrading update will make diamond a bit more needed for longer.