Looking to get lots of gold and silver ore to help with my smithing improvement. As stated above: Do the mines re-spawn or re-generate ore?

Or, once it is tapped it is gave over for that mine (as would happen in real life.) Thanks for any replies.

It "should" regenerate, in theory.

It takes 30 in-game days to respawn.
Although there is a bug on all platforms that makes it sometimes not do so.

There are mods that shorten the respawn time, too.

Thanx for replies.