Soul Sand

Soul Sand is a block.

Obtaining
Soul Sand is obtainable as a Trade and can be found on the Nether Wart Island. It may also be bought from the Builder under the Variety tab.

Natural generation
You can find Soul Sand on the Nether Wart Island, but it costs 30 Soul Sand to make it (Although, this way of getting Soul sand has a WAY larger payout.The Island only costs 30 Soul Sand and 15 Nether Wart, but this island has a few stacks of Soul Sand and some Obsidian.).

Nether Wart Minion
The Nether Wart Minion requires Soul Sand in a 5x5 grid around it to function.