This is clearly not "polished" in the usual sense, it's rubble that's just a little polished (presumably from tumbling) they arrived in a Bag dusty but not as dusty as some I've seen, I rinsed them, dried thoroughly then sprayed them lightly with Krylon Satin Lacquer a few times which made them even more finished if you are looking for houseplanters they are almost all very bright white.
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