Polished Diorite is a building block made by crafting Diorite. It stacks up to 64, and placing it puts down a block of the same name.
Players use it as a smoother alternative to plain Diorite in their builds. It also serves as an ingredient in four different recipes, so it can be crafted into other items as well.
Worked out by reading the registry of every Minecraft build Mojang has published, in release order.
| Version | Date | What the files show |
|---|---|---|
| before 18w01a | — | Already in the game when Mojang’s data generator first shipped, in 18w01a (3 January 2018). The files do not say which earlier version added it. |
