Recently I put a cup that had a bit of peppermint oil on the bottom of it on my table. It must have dissolved and adhered the finish because the cup was firmly stuck to the table. After removing it, there's a ring in the finish. It's textured and it looks like at least some of the finish material is gone now.
I don't know what type of finish was used on this table, unfortunately. If I had to guess I'd say it was polyurethane. I'm wondering whether I have any options to fix / improve the ring short of fully refinishing the table. The table is in very good shape aside from this damage.