Master Mining Pick (Not sure if bugged)
I’ve found (and the gw2 wiki agrees) that different “Master Mining Picks” have different equivalences. So one MMP will be ori level, the next might be only darksteel level, etc.
Don’t know if this is how it’s supposed to work (it makes them essentially useless IMO since I’m not going to risk getting a ruined ore chunk on ori nodes) but it’s observed behavior.