The polished version of andesite can be commonly found inside of woodland mansions in the “jail rooms.” Andesite is kind of easy to spot due to its blueish grey color.

Players can create polished andesite, which has a smoother polished look by combining 4 andesite at a crafting table, or putting it through the stonecutter. This will allow players to craft ...

This has always been the case with "Minecraft," which originally launched as a playable "Alpha": a game that's playable, but far from finished.