Nonrenewable Resource

The following resources can never be renewable (and some can't even be obtained) by any method but cheating: Air, Magma, Stone, Dirt, Sand, Marble, Red Marble, Limestone, and Lapis Lazuli. All the items created with at least one ingredient which is not renewable resource are unrenewable with the exception of Marble White and Ultramarine Blue which can be obtained by meditating.

A Blockhead can of course make air by destroying any other block. However, there is a finite amount of blocks within each world, therefore Air isn't renewable resource however it's frequency is extremely high. Stone and dirt are similarly plentiful but finite.

All the other resources are not regularly renewable however a Blockhead can get most of them by meditating or mining with a gold pickaxe but of course, in a much slower rate than the renewable resources.