PLACE A COMMAND BLOCK WITH THIS NBT (DON'T DO THE ") "/give @p diamond{Auto-Smelt:1,display:{Lore:["Auto-Smelt I"]}} THEN PLACE A REPEATING COMMAND BLOCK AND HAVE THIS NBT "/execute @e[type=Item,nbt={Inventory:[{Slot:-106b,tag:{Auto-Smelt:1}}]}] run clear @p iron_ore 

(YOU CAN DO GOLD TOO) AFTER PLACE A CONDITIONAL CHAIN COMMAND BLOCK AND ADD THIS NBT "/give @p iron_ingot"