Have you ever wanted to get Blackstone from the safety of the overworld or without the hours of mining? Well if so I have the solution for you
This Crafting tweaks Datapack allows you to turn Stone and Smooth-Stone into Blackstone and Polished Blackstone respectively.

Recipes for crafting are below

Cobblestone + Black dye = Blackstone

Smooth-Stone + Black dye = Polished Blackstone

If you are using a stonecutter the Cobblestone coverts directly to Blackstone without dye and same with Smooth-Stone and Polished Blackstone.

If you have recommendations or find any bugs please tell me in the comments.