This world is a chart that contains every stone type, along with its variants (chiselled, bricks, polished, etc.), to see what is and isn't in Minecraft. It does not include stairs, walls, slabs, buttons, pressure plates, or bulbs.
The chosen blocks have been considered as stones, due to their block variants. Copper, while a metal, is considered a stone on this chart.
Do whatever you want with it. ¯\_(ツ)_/¯
For versions below 1.21 snapshots, the 1.21 experimental data pack must be enabled.
The Stone Variation Chart Team
