The Obsidian Block

The Obsidian Block is a block of obsidian that scares Purple Shep in the video IS IT POSSIBLE TO BLOW UP OBSIDIAN? | Minecraft. Purple Shep resolves to destroy it with TNT, but is unable to.
Purple Shep first uses TNT to attempt to blow up the block, but it doesn't work. He tries larger amounts of TNT, Failboat and Pink Sheep's cars, "Obsidian TNT", and even the TNT that decorates Explodingtnt's house, but still fails to destroy the block. At the end of the video, Purple Shep accidentally breaks the block with his hand, destroying it.