Mine graphic problem

Im not saying anything about the values not being equal, you guys cleared up the confusion there already. There are a few settlements which have the mine graphic on the campaign map, but don't the building in the settlement. I can think of one immediately, Massalia.
Also I think there is a typo in the description of Roman Mines, or it could be Land Grants. Construction was spelled wrong

You're sure that you're not talking about Salt Mines?

Mines in EB have been changed to look like a little cave with metal next it, Salt mines look like the vanilla mines only smaller. If you hover your mouse pointer over the mine it will tell you what it is and how much you can mine out of it.

And those salt mines have a heap of white stuff near them - the salt, yes.