Barrier Stone (Thaumcraft 5)

The Barrier Stone is a block added by Thaumcraft 5. It acts like a Fence; it will prevent mobs, except the player, from walking on the top of the block.
Giving the Paving Stone of Warding a Redstone signal will disable its functionality, and so will putting another block atop it.
==Recipe==
==Thaumonomicon entry==
Category:Thaumcraft 5