Based off the ideas of goldenpie6.
OreLock is a plugin that allows players to open a GUI that will give them access to mine ores. This access can cost any currency integrated with Vault.
/oreunlock - opens menu
/oreunlock set [player] [ore#] - sets a player's current mining level
/oreunlock get [player] - gets a player's mining level
oreunlock.use - for main command, default
oreunlock.admin - for set/get commands
oreunlock.override - for bypassing mining level check, default for ops