Have you ever run out of cobblestones for the nether? After all, there’s a stone, and from it you can make cobblestones, but netherite is also a stone!

This mod will not only add nether cobblestones but will also change the observer’s recipe and add a new furnace.
Fire Furnace
It’s made like a regular furnace, but using Nether cobblestones. The main difference is that the furnace needs quartz to function. If you wish, you can set an explosion on failure in the game rules. The furnace is designed to look like Nether cobblestone from the back. After using quartz, the furnace returns to normal.

New Observer recipe
The observer no longer requires quartz unless it’s made from nether cobblestones.

If you get netherrack instead of full netherrack, you’ll get the cobblestone version!
It’s possible to craft a stone pickaxe in the Nether!
Stairs, slabs, walls and furnaces!
Fire Furnace turns into a regular Furnace after right‑clicking it with quartz!
Particles of the furnace unlocking after using the quartz are visible.