Are you bored of normal Minecraft resources? No? Well still:
PMR (Project: More Resources) is a mod that adds more... resources!(Who would doubt that) It adds 5 resources: aluminium, steel, zinc, natural oil and uranium.
Zinc
Zinc is a common metal that is a bit weaker than iron. Zinc can be mined from zinc ore and then smelted into ingots. You can craft blocks, armour and tools from it.
Aluminium
Aluminium is a metal that cannot be mined from ores, but can be crafted from 2 iron ingots and 2 iron nuggets. Same as with zinc, you can craft blocks, armour and tools using it. It also can be crafted into steel.
Steel
Steel is a metal, that is crafted from 1 diamond and 8 aluminium ingots. It can also be crafted into blocks, amour and tools just like other metals, but it's really strong. You can also craft the advanced furnace from it (don't actually do it because I didn't add the functionality yet lol).
Natural oil
Natural oil is a hot substance with a black colour. It can be used to power the advanced furnace (but as said it does not because the furnace doesn't work yet)
Uranium
A toxic green coloured resource, that can be crafted into blocks. These uranium blocks work like redstone blocks. Also you can craft radioactive potatoes out of it, because why not!