Stone

Stone is a widely used crafting item which can be obtained by mining it in the overworld. Stone does not spawn underground and is the least common of the three main resources, plant and wood both spawning more frequently.

Crafting and Usage
Stone can be used to craft the stone block and various other items.

Development
Stone is exactly the same as in Epic Inventor but has very different usage. Stone was added during the indev pre-alpha stage in 0.0.1 and hasn't changed since.