Is it a biome in existing dimensions except end? Then I dont know how. If it is a custom dimension, you can make the ore you want to generate in one biome only generate in that biome with the restriction biomes parameter and make sure all the ores have restriction biomes parameter or else they'll generate in every biome
Is it a biome in existing dimensions except end? Then I dont know how. If it is a custom dimension, you can make the ore you want to generate in one biome only generate in that biome with the restriction biomes parameter and make sure all the ores have restriction biomes parameter or else they'll generate in every biome