Barrier – Minecraft Wiki

Barrier is an invisible block used to create solid boundaries. Barriers can be obtained only using commands such as /give, /item on Java Edition, and /replaceitem on Bedrock Edition and cannot be broken in survival mode. In Java Edition, barriers are available in the creative inventory. In normal worlds, barriers don't generate naturally. They only generate in debug mode worlds, where barriers generate as the floor exclusively on Java Edition as the Debug mode world type is not on Bedrock Editio

How to get barrier blocks in Minecraft

Low-barrier hydrogen bond - Wikipedia

Tutorials/Things not to do – Minecraft Wiki

♢ Minecraft Villager ♢ Professions & more

Barrier, Minecraft Wiki

Fences

Minecraft - Wikipedia

Barrier – Minecraft Wiki

File:Barrier.png - Mine Blocks Wiki

Medium Barrier - OSRS Wiki

Minecraft Villager Professions & more