Treasure Crystals are collectible blocks added in Version 2.0. Treasure Crystals are the only blocks that can be collected and placed a limited amount of times. Only ten can be placed in each world. Treasure Crystals hover above the ground and rotate in multiple directions.
- A glitch can occur than allows more than ten Treasure Crystals to be placed in one world.
- Treasure Crystals are the only blocks that cannot be broken with the pickaxe. They can only be removed by walking through them.
- When placing them in the air with nothing nearby, they disappear.
- Treasure Crystals cannot be destroyed by TNT along with Bedrock and Steel.