Yes, you can make an endless cobblestone generator in Minecraft Earth. Here's how to do it.

Never run out of stone again! 🪨💡 In this survival-friendly tutorial, you’ll learn how to build a stone farm in Minecraft — also known as an automatic cobblestone generator. Using ...

You can make a Cobblestone Generator machine to infinitely generate cobblestone for your sake. On another hand, Blackstone can be found in specific biomes in the Nether dimension.