Zoni's Mob Ores
This mod introduces unique ores to the Minecraft world that yield a special resource - Mob Essence - when mined. This item enables the crafting of almost any drops from standard hostile mobs in the game.
The main development concept was to allow players to obtain mob resources even when playing on Peaceful difficulty. Currently, only aggressive mobs are supported, but future updates plan to include neutral creatures as well.
An important feature is that item placement on the crafting table matters. For convenience, it's recommended to use recipe viewing mods like JEI.