Kc's Basic Innovations adds new ores, alloys, and tools, as well as an overhaul of the smelting system.
This mod is a Work in Progress
If you encounter a bug, check the list of known issues before leaving a comment. Suggestions are always welcome!
Graphite can drop shards, flakes, or lumps

Crucibles can be crafted using 7 graphite flakes
Crucibles have a 9-slot inventory
Filled Cruciibles can be smelted in a furnace
The result will have updated contents
The inventory will now contain the alloy
The alloy smelter can be crafted using stone and graphite lumps
The alloy smelter works like a crucible and furnace combined, and multiple of the same alloy can be created at once.
The temperature will drop if fuel runs out.
Bronze Tools - More durable than iron