History
Worked out by reading the registry of every Minecraft build Mojang has published, in release order.
| Version | Date | What the files show |
|---|---|---|
| 20w15a | 8 April 2020 | Added. |
Polished Blackstone Slab is an item in Minecraft, crafted from Polished Blackstone and Blackstone. It stacks up to 64, so a large supply fits easily in a single inventory slot.
Players place it to set down a Polished Blackstone Slab block in their builds. It also serves as an ingredient in one crafting recipe.
Worked out by reading the registry of every Minecraft build Mojang has published, in release order.
| Version | Date | What the files show |
|---|---|---|
| 20w15a | 8 April 2020 | Added. |