Crusted Taint (Thaumcraft 4)

Crusted Taint is a block added by Thaumcraft 4. It is found in Tainted Lands biomes. It is commonly found in clusters that house Flux Goo. Crusted Taint shares a similar texture to Taint Spore Swarmers.

If Forbidden Magic is installed it has a chance to drop Taint Shards when mined with the Shovel of the Purifier.