Features:
The Sulphur Ore can be an interesting obstacle in the Nether, if you step on the wrong one (that is in contact with a Magma Block, Lava or Fire) it will trigger a small explosion causing you potential trouble
Its a minable ore that will give you Sulphur as a drop when mined with a tool above Wood, it works with both Fortune (giving 2 on any level), and Silk Touch.
Sulphur can be used as a better fuel source than Coal, and can be combined with Charcoal crafting 2 gunpowder (alternative block recipe - Block of Charcoal + Sulphur Block = 18 gunpowder)
The Ore itself can be used as a strip-mining tool or a fuse as it is reactive with itself (any explosion) and can be blown up with either a Flint and Steel or a flaming Arrow
The same goes for the Sulphur Block - which is a lot more explosive than its ore counterpart

Adds explosive Sulphur generating in Basalt Deltas