Enchantment idea: Transmutation

"Transmutation" is a rare enchantment that can be discovered in treasure chests within Ancient Cities, (the first structure that comes to mind). The enchant would be incompatible with Silk Touch, but could be used alongside Fortune enchantment.

This enchantment allows the player to extract a different resource from ores, with the ore and the resulting substance being interchangeable. The transmutation results are as follows:

• Copper <--> Coal
• Iron <--> Gold (Nether gold: Gold nuggets <--> Iron nuggets)
• Redstone <--> Lapis lazuli
• Diamonds <--> Emeralds

The inclusion of this enchantment introduces more intriguing mining strategies, providing players with increased choices and diversifying their resource acquisition. This potent enchantment significantly enhances the rewarding aspect of exploring Ancient Cities.

If you have any other ideas or spotted some gameplay loopholes (enchantment being overpowered/out of place, let me know in the comments).