I think it is a Faucaria of some kind. It was labeled “mimicry” which I now understand to describe many types of succulents but didn’t have any reception at the nursery to see if it was a helpful common name. I broke my self imposed no-buy for this little friend because it is so unlike anything else in my collection.

I can’t keep lithops alive, but I’ve done well with Fenestraria, so let’s hope I can figure this one out lol.