Iron Farm alternative

This new iron farm alternative would incentivise mining by adding a new ore: Kamacite. Kamacite would spawn in clusters of 1-9, and would only be mineble with dimond pickaxe or up. When smelted Kamacite would give you 4 iron ingots.

Kamacite should only generate in a few biomes, but it would be fairly common in them, this way it would add strategy to mining.