Traverse through many caves to find the brand new Sulfur Caves biome. Deep down there, you will find a jumpy little cube...
This mod adds in 2 block sets that you may find while digging in the Sulfur Caves: Sulfur and Cinnabar, aswell as a brand new mob Sulfur Cube and the Sulfur Caves biome. Each of the block sets have got a variety of materials you can use to decorate your houses.

The Sulfur Cube has a very special ability: it can absorb a variety of blocks, such as logs and ice.
Currently the mod has 3 sulfur cube varieties:
Using shears on the sulfur cube after it has absorbed a block will remove the block from it.
Potent sulfur also has a feature when water is placed above it:
Any player or entity that swims above the potent sulfur will get inflicted with Nausea for 3 seconds.
