I'm using google translate so please forgive me for any mistakes. As for the comments, this plugin is great. It supports up to 1.21.4, maybe even later versions of Minecraft. Just install it and add new ores to the config and reload it and you can use it. The plugin is great and I've applied it to version 1.21.4

Works great, just as it says it does. Blocks do not drop ore or exp. Very useful.